Toniolo and Linder, Equation (10-)

Percentage Accurate: 35.1% → 97.0%
Time: 22.2s
Alternatives: 11
Speedup: 28.1×

Specification

?
\[\begin{array}{l} \\ \frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (/
  2.0
  (*
   (* (* (/ (pow t 3.0) (* l l)) (sin k)) (tan k))
   (- (+ 1.0 (pow (/ k t) 2.0)) 1.0))))
double code(double t, double l, double k) {
	return 2.0 / ((((pow(t, 3.0) / (l * l)) * sin(k)) * tan(k)) * ((1.0 + pow((k / t), 2.0)) - 1.0));
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    code = 2.0d0 / (((((t ** 3.0d0) / (l * l)) * sin(k)) * tan(k)) * ((1.0d0 + ((k / t) ** 2.0d0)) - 1.0d0))
end function
public static double code(double t, double l, double k) {
	return 2.0 / ((((Math.pow(t, 3.0) / (l * l)) * Math.sin(k)) * Math.tan(k)) * ((1.0 + Math.pow((k / t), 2.0)) - 1.0));
}
def code(t, l, k):
	return 2.0 / ((((math.pow(t, 3.0) / (l * l)) * math.sin(k)) * math.tan(k)) * ((1.0 + math.pow((k / t), 2.0)) - 1.0))
function code(t, l, k)
	return Float64(2.0 / Float64(Float64(Float64(Float64((t ^ 3.0) / Float64(l * l)) * sin(k)) * tan(k)) * Float64(Float64(1.0 + (Float64(k / t) ^ 2.0)) - 1.0)))
end
function tmp = code(t, l, k)
	tmp = 2.0 / (((((t ^ 3.0) / (l * l)) * sin(k)) * tan(k)) * ((1.0 + ((k / t) ^ 2.0)) - 1.0));
end
code[t_, l_, k_] := N[(2.0 / N[(N[(N[(N[(N[Power[t, 3.0], $MachinePrecision] / N[(l * l), $MachinePrecision]), $MachinePrecision] * N[Sin[k], $MachinePrecision]), $MachinePrecision] * N[Tan[k], $MachinePrecision]), $MachinePrecision] * N[(N[(1.0 + N[Power[N[(k / t), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision] - 1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}
\end{array}

Sampling outcomes in binary64 precision:

Local Percentage Accuracy vs ?

The average percentage accuracy by input value. Horizontal axis shows value of an input variable; the variable is choosen in the title. Vertical axis is accuracy; higher is better. Red represent the original program, while blue represents Herbie's suggestion. These can be toggled with buttons below the plot. The line is an average while dots represent individual samples.

Accuracy vs Speed?

Herbie found 11 alternatives:

AlternativeAccuracySpeedup
The accuracy (vertical axis) and speed (horizontal axis) of each alternatives. Up and to the right is better. The red square shows the initial program, and each blue circle shows an alternative.The line shows the best available speed-accuracy tradeoffs.

Initial Program: 35.1% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (/
  2.0
  (*
   (* (* (/ (pow t 3.0) (* l l)) (sin k)) (tan k))
   (- (+ 1.0 (pow (/ k t) 2.0)) 1.0))))
double code(double t, double l, double k) {
	return 2.0 / ((((pow(t, 3.0) / (l * l)) * sin(k)) * tan(k)) * ((1.0 + pow((k / t), 2.0)) - 1.0));
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    code = 2.0d0 / (((((t ** 3.0d0) / (l * l)) * sin(k)) * tan(k)) * ((1.0d0 + ((k / t) ** 2.0d0)) - 1.0d0))
end function
public static double code(double t, double l, double k) {
	return 2.0 / ((((Math.pow(t, 3.0) / (l * l)) * Math.sin(k)) * Math.tan(k)) * ((1.0 + Math.pow((k / t), 2.0)) - 1.0));
}
def code(t, l, k):
	return 2.0 / ((((math.pow(t, 3.0) / (l * l)) * math.sin(k)) * math.tan(k)) * ((1.0 + math.pow((k / t), 2.0)) - 1.0))
function code(t, l, k)
	return Float64(2.0 / Float64(Float64(Float64(Float64((t ^ 3.0) / Float64(l * l)) * sin(k)) * tan(k)) * Float64(Float64(1.0 + (Float64(k / t) ^ 2.0)) - 1.0)))
end
function tmp = code(t, l, k)
	tmp = 2.0 / (((((t ^ 3.0) / (l * l)) * sin(k)) * tan(k)) * ((1.0 + ((k / t) ^ 2.0)) - 1.0));
end
code[t_, l_, k_] := N[(2.0 / N[(N[(N[(N[(N[Power[t, 3.0], $MachinePrecision] / N[(l * l), $MachinePrecision]), $MachinePrecision] * N[Sin[k], $MachinePrecision]), $MachinePrecision] * N[Tan[k], $MachinePrecision]), $MachinePrecision] * N[(N[(1.0 + N[Power[N[(k / t), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision] - 1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}
\end{array}

Alternative 1: 97.0% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\ell \cdot \ell \leq 5 \cdot 10^{+105}:\\ \;\;\;\;\frac{\frac{\ell}{\tan k}}{k} \cdot \frac{\frac{2}{\frac{\sin k}{\ell}}}{k \cdot t}\\ \mathbf{else}:\\ \;\;\;\;\frac{2}{{\left(\sin k \cdot \frac{k}{\ell}\right)}^{2}} \cdot \frac{\cos k}{t}\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (if (<= (* l l) 5e+105)
   (* (/ (/ l (tan k)) k) (/ (/ 2.0 (/ (sin k) l)) (* k t)))
   (* (/ 2.0 (pow (* (sin k) (/ k l)) 2.0)) (/ (cos k) t))))
double code(double t, double l, double k) {
	double tmp;
	if ((l * l) <= 5e+105) {
		tmp = ((l / tan(k)) / k) * ((2.0 / (sin(k) / l)) / (k * t));
	} else {
		tmp = (2.0 / pow((sin(k) * (k / l)), 2.0)) * (cos(k) / t);
	}
	return tmp;
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    real(8) :: tmp
    if ((l * l) <= 5d+105) then
        tmp = ((l / tan(k)) / k) * ((2.0d0 / (sin(k) / l)) / (k * t))
    else
        tmp = (2.0d0 / ((sin(k) * (k / l)) ** 2.0d0)) * (cos(k) / t)
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double tmp;
	if ((l * l) <= 5e+105) {
		tmp = ((l / Math.tan(k)) / k) * ((2.0 / (Math.sin(k) / l)) / (k * t));
	} else {
		tmp = (2.0 / Math.pow((Math.sin(k) * (k / l)), 2.0)) * (Math.cos(k) / t);
	}
	return tmp;
}
def code(t, l, k):
	tmp = 0
	if (l * l) <= 5e+105:
		tmp = ((l / math.tan(k)) / k) * ((2.0 / (math.sin(k) / l)) / (k * t))
	else:
		tmp = (2.0 / math.pow((math.sin(k) * (k / l)), 2.0)) * (math.cos(k) / t)
	return tmp
function code(t, l, k)
	tmp = 0.0
	if (Float64(l * l) <= 5e+105)
		tmp = Float64(Float64(Float64(l / tan(k)) / k) * Float64(Float64(2.0 / Float64(sin(k) / l)) / Float64(k * t)));
	else
		tmp = Float64(Float64(2.0 / (Float64(sin(k) * Float64(k / l)) ^ 2.0)) * Float64(cos(k) / t));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	tmp = 0.0;
	if ((l * l) <= 5e+105)
		tmp = ((l / tan(k)) / k) * ((2.0 / (sin(k) / l)) / (k * t));
	else
		tmp = (2.0 / ((sin(k) * (k / l)) ^ 2.0)) * (cos(k) / t);
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := If[LessEqual[N[(l * l), $MachinePrecision], 5e+105], N[(N[(N[(l / N[Tan[k], $MachinePrecision]), $MachinePrecision] / k), $MachinePrecision] * N[(N[(2.0 / N[(N[Sin[k], $MachinePrecision] / l), $MachinePrecision]), $MachinePrecision] / N[(k * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(2.0 / N[Power[N[(N[Sin[k], $MachinePrecision] * N[(k / l), $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision] * N[(N[Cos[k], $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;\ell \cdot \ell \leq 5 \cdot 10^{+105}:\\
\;\;\;\;\frac{\frac{\ell}{\tan k}}{k} \cdot \frac{\frac{2}{\frac{\sin k}{\ell}}}{k \cdot t}\\

\mathbf{else}:\\
\;\;\;\;\frac{2}{{\left(\sin k \cdot \frac{k}{\ell}\right)}^{2}} \cdot \frac{\cos k}{t}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (*.f64 l l) < 5.00000000000000046e105

    1. Initial program 33.1%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*33.0%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*33.3%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*33.1%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/34.3%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative34.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac35.0%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative35.0%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+46.6%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval46.6%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity46.6%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac54.0%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified54.0%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 89.4%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow289.4%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified89.4%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Step-by-step derivation
      1. associate-*l/89.4%

        \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\left(k \cdot k\right) \cdot t}} \]
      2. associate-*l*95.1%

        \[\leadsto \frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\color{blue}{k \cdot \left(k \cdot t\right)}} \]
    8. Applied egg-rr95.1%

      \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{k \cdot \left(k \cdot t\right)}} \]
    9. Step-by-step derivation
      1. associate-*l/95.1%

        \[\leadsto \color{blue}{\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
      2. associate-*r*89.4%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      3. unpow289.4%

        \[\leadsto \frac{2}{\color{blue}{{k}^{2}} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      4. associate-/r*89.3%

        \[\leadsto \color{blue}{\frac{\frac{2}{{k}^{2}}}{t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      5. unpow289.3%

        \[\leadsto \frac{\frac{2}{\color{blue}{k \cdot k}}}{t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      6. associate-*r*92.2%

        \[\leadsto \color{blue}{\left(\frac{\frac{2}{k \cdot k}}{t} \cdot \frac{\ell}{\sin k}\right) \cdot \frac{\ell}{\tan k}} \]
      7. *-commutative92.2%

        \[\leadsto \color{blue}{\frac{\ell}{\tan k} \cdot \left(\frac{\frac{2}{k \cdot k}}{t} \cdot \frac{\ell}{\sin k}\right)} \]
      8. unpow292.2%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{\frac{2}{\color{blue}{{k}^{2}}}}{t} \cdot \frac{\ell}{\sin k}\right) \]
      9. associate-/r*92.2%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \frac{\ell}{\sin k}\right) \]
      10. unpow292.2%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \frac{\ell}{\sin k}\right) \]
      11. associate-*r*97.9%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{2}{\color{blue}{k \cdot \left(k \cdot t\right)}} \cdot \frac{\ell}{\sin k}\right) \]
      12. associate-*l/97.9%

        \[\leadsto \frac{\ell}{\tan k} \cdot \color{blue}{\frac{2 \cdot \frac{\ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
      13. associate-*r/97.9%

        \[\leadsto \frac{\ell}{\tan k} \cdot \frac{\color{blue}{\frac{2 \cdot \ell}{\sin k}}}{k \cdot \left(k \cdot t\right)} \]
    10. Simplified97.9%

      \[\leadsto \color{blue}{\frac{\ell}{\tan k} \cdot \frac{\frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
    11. Step-by-step derivation
      1. associate-*r/95.1%

        \[\leadsto \color{blue}{\frac{\frac{\ell}{\tan k} \cdot \frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
    12. Applied egg-rr95.1%

      \[\leadsto \color{blue}{\frac{\frac{\ell}{\tan k} \cdot \frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
    13. Step-by-step derivation
      1. times-frac99.2%

        \[\leadsto \color{blue}{\frac{\frac{\ell}{\tan k}}{k} \cdot \frac{\frac{2 \cdot \ell}{\sin k}}{k \cdot t}} \]
      2. associate-/l*99.2%

        \[\leadsto \frac{\frac{\ell}{\tan k}}{k} \cdot \frac{\color{blue}{\frac{2}{\frac{\sin k}{\ell}}}}{k \cdot t} \]
    14. Applied egg-rr99.2%

      \[\leadsto \color{blue}{\frac{\frac{\ell}{\tan k}}{k} \cdot \frac{\frac{2}{\frac{\sin k}{\ell}}}{k \cdot t}} \]

    if 5.00000000000000046e105 < (*.f64 l l)

    1. Initial program 24.7%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. +-rgt-identity13.7%

        \[\leadsto \frac{2}{\color{blue}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) + 0}} \]
      2. associate-*l*13.7%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \left(\tan k \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)} + 0} \]
      3. mul0-rgt17.0%

        \[\leadsto \frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \left(\tan k \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right) + \color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot 0}} \]
      4. distribute-lft-in21.3%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \left(\tan k \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) + 0\right)}} \]
      5. +-rgt-identity24.7%

        \[\leadsto \frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \color{blue}{\left(\tan k \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      6. sub-neg24.7%

        \[\leadsto \frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \left(\tan k \cdot \color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + \left(-1\right)\right)}\right)} \]
      7. +-commutative24.7%

        \[\leadsto \frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \left(\tan k \cdot \left(\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} + \left(-1\right)\right)\right)} \]
      8. associate-+l+25.7%

        \[\leadsto \frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \left(\tan k \cdot \color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + \left(1 + \left(-1\right)\right)\right)}\right)} \]
      9. metadata-eval25.7%

        \[\leadsto \frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \left(\tan k \cdot \left({\left(\frac{k}{t}\right)}^{2} + \left(1 + \color{blue}{-1}\right)\right)\right)} \]
      10. metadata-eval25.7%

        \[\leadsto \frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \left(\tan k \cdot \left({\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}\right)\right)} \]
      11. +-rgt-identity25.7%

        \[\leadsto \frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \left(\tan k \cdot \color{blue}{{\left(\frac{k}{t}\right)}^{2}}\right)} \]
    3. Simplified25.7%

      \[\leadsto \color{blue}{\frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \left(\tan k \cdot {\left(\frac{k}{t}\right)}^{2}\right)}} \]
    4. Step-by-step derivation
      1. expm1-log1p-u23.1%

        \[\leadsto \frac{2}{\color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \left(\tan k \cdot {\left(\frac{k}{t}\right)}^{2}\right)\right)\right)}} \]
      2. expm1-udef11.0%

        \[\leadsto \frac{2}{\color{blue}{e^{\mathsf{log1p}\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \left(\tan k \cdot {\left(\frac{k}{t}\right)}^{2}\right)\right)} - 1}} \]
    5. Applied egg-rr17.5%

      \[\leadsto \frac{2}{\color{blue}{e^{\mathsf{log1p}\left({\left(\left(\frac{{t}^{1.5}}{\ell} \cdot \sqrt{\sin k \cdot \tan k}\right) \cdot \frac{k}{t}\right)}^{2}\right)} - 1}} \]
    6. Step-by-step derivation
      1. expm1-def18.4%

        \[\leadsto \frac{2}{\color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left({\left(\left(\frac{{t}^{1.5}}{\ell} \cdot \sqrt{\sin k \cdot \tan k}\right) \cdot \frac{k}{t}\right)}^{2}\right)\right)}} \]
      2. expm1-log1p18.6%

        \[\leadsto \frac{2}{\color{blue}{{\left(\left(\frac{{t}^{1.5}}{\ell} \cdot \sqrt{\sin k \cdot \tan k}\right) \cdot \frac{k}{t}\right)}^{2}}} \]
      3. *-commutative18.6%

        \[\leadsto \frac{2}{{\color{blue}{\left(\frac{k}{t} \cdot \left(\frac{{t}^{1.5}}{\ell} \cdot \sqrt{\sin k \cdot \tan k}\right)\right)}}^{2}} \]
      4. *-commutative18.6%

        \[\leadsto \frac{2}{{\left(\frac{k}{t} \cdot \color{blue}{\left(\sqrt{\sin k \cdot \tan k} \cdot \frac{{t}^{1.5}}{\ell}\right)}\right)}^{2}} \]
    7. Simplified18.6%

      \[\leadsto \frac{2}{\color{blue}{{\left(\frac{k}{t} \cdot \left(\sqrt{\sin k \cdot \tan k} \cdot \frac{{t}^{1.5}}{\ell}\right)\right)}^{2}}} \]
    8. Taylor expanded in k around inf 39.9%

      \[\leadsto \frac{2}{{\color{blue}{\left(\frac{k \cdot \sin k}{\ell} \cdot \sqrt{\frac{t}{\cos k}}\right)}}^{2}} \]
    9. Step-by-step derivation
      1. associate-/l*39.9%

        \[\leadsto \frac{2}{{\left(\color{blue}{\frac{k}{\frac{\ell}{\sin k}}} \cdot \sqrt{\frac{t}{\cos k}}\right)}^{2}} \]
      2. associate-/r/40.0%

        \[\leadsto \frac{2}{{\left(\color{blue}{\left(\frac{k}{\ell} \cdot \sin k\right)} \cdot \sqrt{\frac{t}{\cos k}}\right)}^{2}} \]
    10. Simplified40.0%

      \[\leadsto \frac{2}{{\color{blue}{\left(\left(\frac{k}{\ell} \cdot \sin k\right) \cdot \sqrt{\frac{t}{\cos k}}\right)}}^{2}} \]
    11. Step-by-step derivation
      1. div-inv40.0%

        \[\leadsto \color{blue}{2 \cdot \frac{1}{{\left(\left(\frac{k}{\ell} \cdot \sin k\right) \cdot \sqrt{\frac{t}{\cos k}}\right)}^{2}}} \]
      2. *-commutative40.0%

        \[\leadsto 2 \cdot \frac{1}{{\left(\color{blue}{\left(\sin k \cdot \frac{k}{\ell}\right)} \cdot \sqrt{\frac{t}{\cos k}}\right)}^{2}} \]
    12. Applied egg-rr40.0%

      \[\leadsto \color{blue}{2 \cdot \frac{1}{{\left(\left(\sin k \cdot \frac{k}{\ell}\right) \cdot \sqrt{\frac{t}{\cos k}}\right)}^{2}}} \]
    13. Step-by-step derivation
      1. associate-*r/40.0%

        \[\leadsto \color{blue}{\frac{2 \cdot 1}{{\left(\left(\sin k \cdot \frac{k}{\ell}\right) \cdot \sqrt{\frac{t}{\cos k}}\right)}^{2}}} \]
      2. metadata-eval40.0%

        \[\leadsto \frac{\color{blue}{2}}{{\left(\left(\sin k \cdot \frac{k}{\ell}\right) \cdot \sqrt{\frac{t}{\cos k}}\right)}^{2}} \]
      3. unpow240.0%

        \[\leadsto \frac{2}{\color{blue}{\left(\left(\sin k \cdot \frac{k}{\ell}\right) \cdot \sqrt{\frac{t}{\cos k}}\right) \cdot \left(\left(\sin k \cdot \frac{k}{\ell}\right) \cdot \sqrt{\frac{t}{\cos k}}\right)}} \]
      4. swap-sqr39.1%

        \[\leadsto \frac{2}{\color{blue}{\left(\left(\sin k \cdot \frac{k}{\ell}\right) \cdot \left(\sin k \cdot \frac{k}{\ell}\right)\right) \cdot \left(\sqrt{\frac{t}{\cos k}} \cdot \sqrt{\frac{t}{\cos k}}\right)}} \]
      5. unpow239.1%

        \[\leadsto \frac{2}{\color{blue}{{\left(\sin k \cdot \frac{k}{\ell}\right)}^{2}} \cdot \left(\sqrt{\frac{t}{\cos k}} \cdot \sqrt{\frac{t}{\cos k}}\right)} \]
      6. rem-square-sqrt98.0%

        \[\leadsto \frac{2}{{\left(\sin k \cdot \frac{k}{\ell}\right)}^{2} \cdot \color{blue}{\frac{t}{\cos k}}} \]
    14. Simplified98.0%

      \[\leadsto \color{blue}{\frac{2}{{\left(\sin k \cdot \frac{k}{\ell}\right)}^{2} \cdot \frac{t}{\cos k}}} \]
    15. Step-by-step derivation
      1. expm1-log1p-u52.0%

        \[\leadsto \color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left(\frac{2}{{\left(\sin k \cdot \frac{k}{\ell}\right)}^{2} \cdot \frac{t}{\cos k}}\right)\right)} \]
      2. expm1-udef31.7%

        \[\leadsto \color{blue}{e^{\mathsf{log1p}\left(\frac{2}{{\left(\sin k \cdot \frac{k}{\ell}\right)}^{2} \cdot \frac{t}{\cos k}}\right)} - 1} \]
    16. Applied egg-rr31.7%

      \[\leadsto \color{blue}{e^{\mathsf{log1p}\left(\frac{2}{{\left(\sin k \cdot \frac{k}{\ell}\right)}^{2} \cdot \frac{t}{\cos k}}\right)} - 1} \]
    17. Step-by-step derivation
      1. expm1-def52.0%

        \[\leadsto \color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left(\frac{2}{{\left(\sin k \cdot \frac{k}{\ell}\right)}^{2} \cdot \frac{t}{\cos k}}\right)\right)} \]
      2. expm1-log1p98.0%

        \[\leadsto \color{blue}{\frac{2}{{\left(\sin k \cdot \frac{k}{\ell}\right)}^{2} \cdot \frac{t}{\cos k}}} \]
      3. associate-*r/98.0%

        \[\leadsto \frac{2}{\color{blue}{\frac{{\left(\sin k \cdot \frac{k}{\ell}\right)}^{2} \cdot t}{\cos k}}} \]
      4. associate-/l*98.0%

        \[\leadsto \frac{2}{\color{blue}{\frac{{\left(\sin k \cdot \frac{k}{\ell}\right)}^{2}}{\frac{\cos k}{t}}}} \]
      5. associate-/r/98.6%

        \[\leadsto \color{blue}{\frac{2}{{\left(\sin k \cdot \frac{k}{\ell}\right)}^{2}} \cdot \frac{\cos k}{t}} \]
    18. Simplified98.6%

      \[\leadsto \color{blue}{\frac{2}{{\left(\sin k \cdot \frac{k}{\ell}\right)}^{2}} \cdot \frac{\cos k}{t}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification99.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\ell \cdot \ell \leq 5 \cdot 10^{+105}:\\ \;\;\;\;\frac{\frac{\ell}{\tan k}}{k} \cdot \frac{\frac{2}{\frac{\sin k}{\ell}}}{k \cdot t}\\ \mathbf{else}:\\ \;\;\;\;\frac{2}{{\left(\sin k \cdot \frac{k}{\ell}\right)}^{2}} \cdot \frac{\cos k}{t}\\ \end{array} \]

Alternative 2: 89.8% accurate, 1.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{\ell}{\tan k}\\ \mathbf{if}\;\ell \cdot \ell \leq 0:\\ \;\;\;\;\frac{\ell}{k} \cdot \frac{\frac{\ell \cdot 2}{\sin k}}{k \cdot \left(k \cdot t\right)}\\ \mathbf{elif}\;\ell \cdot \ell \leq 10^{+259}:\\ \;\;\;\;\frac{2}{k} \cdot \frac{\frac{\ell \cdot t_1}{\sin k}}{k \cdot t}\\ \mathbf{else}:\\ \;\;\;\;t_1 \cdot \left(2 \cdot \frac{\frac{\ell}{k \cdot k}}{\sin k \cdot t}\right)\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (let* ((t_1 (/ l (tan k))))
   (if (<= (* l l) 0.0)
     (* (/ l k) (/ (/ (* l 2.0) (sin k)) (* k (* k t))))
     (if (<= (* l l) 1e+259)
       (* (/ 2.0 k) (/ (/ (* l t_1) (sin k)) (* k t)))
       (* t_1 (* 2.0 (/ (/ l (* k k)) (* (sin k) t))))))))
double code(double t, double l, double k) {
	double t_1 = l / tan(k);
	double tmp;
	if ((l * l) <= 0.0) {
		tmp = (l / k) * (((l * 2.0) / sin(k)) / (k * (k * t)));
	} else if ((l * l) <= 1e+259) {
		tmp = (2.0 / k) * (((l * t_1) / sin(k)) / (k * t));
	} else {
		tmp = t_1 * (2.0 * ((l / (k * k)) / (sin(k) * t)));
	}
	return tmp;
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    real(8) :: t_1
    real(8) :: tmp
    t_1 = l / tan(k)
    if ((l * l) <= 0.0d0) then
        tmp = (l / k) * (((l * 2.0d0) / sin(k)) / (k * (k * t)))
    else if ((l * l) <= 1d+259) then
        tmp = (2.0d0 / k) * (((l * t_1) / sin(k)) / (k * t))
    else
        tmp = t_1 * (2.0d0 * ((l / (k * k)) / (sin(k) * t)))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double t_1 = l / Math.tan(k);
	double tmp;
	if ((l * l) <= 0.0) {
		tmp = (l / k) * (((l * 2.0) / Math.sin(k)) / (k * (k * t)));
	} else if ((l * l) <= 1e+259) {
		tmp = (2.0 / k) * (((l * t_1) / Math.sin(k)) / (k * t));
	} else {
		tmp = t_1 * (2.0 * ((l / (k * k)) / (Math.sin(k) * t)));
	}
	return tmp;
}
def code(t, l, k):
	t_1 = l / math.tan(k)
	tmp = 0
	if (l * l) <= 0.0:
		tmp = (l / k) * (((l * 2.0) / math.sin(k)) / (k * (k * t)))
	elif (l * l) <= 1e+259:
		tmp = (2.0 / k) * (((l * t_1) / math.sin(k)) / (k * t))
	else:
		tmp = t_1 * (2.0 * ((l / (k * k)) / (math.sin(k) * t)))
	return tmp
function code(t, l, k)
	t_1 = Float64(l / tan(k))
	tmp = 0.0
	if (Float64(l * l) <= 0.0)
		tmp = Float64(Float64(l / k) * Float64(Float64(Float64(l * 2.0) / sin(k)) / Float64(k * Float64(k * t))));
	elseif (Float64(l * l) <= 1e+259)
		tmp = Float64(Float64(2.0 / k) * Float64(Float64(Float64(l * t_1) / sin(k)) / Float64(k * t)));
	else
		tmp = Float64(t_1 * Float64(2.0 * Float64(Float64(l / Float64(k * k)) / Float64(sin(k) * t))));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	t_1 = l / tan(k);
	tmp = 0.0;
	if ((l * l) <= 0.0)
		tmp = (l / k) * (((l * 2.0) / sin(k)) / (k * (k * t)));
	elseif ((l * l) <= 1e+259)
		tmp = (2.0 / k) * (((l * t_1) / sin(k)) / (k * t));
	else
		tmp = t_1 * (2.0 * ((l / (k * k)) / (sin(k) * t)));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := Block[{t$95$1 = N[(l / N[Tan[k], $MachinePrecision]), $MachinePrecision]}, If[LessEqual[N[(l * l), $MachinePrecision], 0.0], N[(N[(l / k), $MachinePrecision] * N[(N[(N[(l * 2.0), $MachinePrecision] / N[Sin[k], $MachinePrecision]), $MachinePrecision] / N[(k * N[(k * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[N[(l * l), $MachinePrecision], 1e+259], N[(N[(2.0 / k), $MachinePrecision] * N[(N[(N[(l * t$95$1), $MachinePrecision] / N[Sin[k], $MachinePrecision]), $MachinePrecision] / N[(k * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(t$95$1 * N[(2.0 * N[(N[(l / N[(k * k), $MachinePrecision]), $MachinePrecision] / N[(N[Sin[k], $MachinePrecision] * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{\ell}{\tan k}\\
\mathbf{if}\;\ell \cdot \ell \leq 0:\\
\;\;\;\;\frac{\ell}{k} \cdot \frac{\frac{\ell \cdot 2}{\sin k}}{k \cdot \left(k \cdot t\right)}\\

\mathbf{elif}\;\ell \cdot \ell \leq 10^{+259}:\\
\;\;\;\;\frac{2}{k} \cdot \frac{\frac{\ell \cdot t_1}{\sin k}}{k \cdot t}\\

\mathbf{else}:\\
\;\;\;\;t_1 \cdot \left(2 \cdot \frac{\frac{\ell}{k \cdot k}}{\sin k \cdot t}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if (*.f64 l l) < 0.0

    1. Initial program 18.6%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*18.6%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*18.6%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*18.6%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/18.6%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative18.6%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac18.6%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative18.6%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+32.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval32.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity32.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac53.0%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified53.0%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 82.4%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow282.4%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified82.4%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Step-by-step derivation
      1. associate-*l/82.4%

        \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\left(k \cdot k\right) \cdot t}} \]
      2. associate-*l*88.9%

        \[\leadsto \frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\color{blue}{k \cdot \left(k \cdot t\right)}} \]
    8. Applied egg-rr88.9%

      \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{k \cdot \left(k \cdot t\right)}} \]
    9. Step-by-step derivation
      1. associate-*l/88.9%

        \[\leadsto \color{blue}{\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
      2. associate-*r*82.4%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      3. unpow282.4%

        \[\leadsto \frac{2}{\color{blue}{{k}^{2}} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      4. associate-/r*82.4%

        \[\leadsto \color{blue}{\frac{\frac{2}{{k}^{2}}}{t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      5. unpow282.4%

        \[\leadsto \frac{\frac{2}{\color{blue}{k \cdot k}}}{t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      6. associate-*r*90.4%

        \[\leadsto \color{blue}{\left(\frac{\frac{2}{k \cdot k}}{t} \cdot \frac{\ell}{\sin k}\right) \cdot \frac{\ell}{\tan k}} \]
      7. *-commutative90.4%

        \[\leadsto \color{blue}{\frac{\ell}{\tan k} \cdot \left(\frac{\frac{2}{k \cdot k}}{t} \cdot \frac{\ell}{\sin k}\right)} \]
      8. unpow290.4%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{\frac{2}{\color{blue}{{k}^{2}}}}{t} \cdot \frac{\ell}{\sin k}\right) \]
      9. associate-/r*90.3%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \frac{\ell}{\sin k}\right) \]
      10. unpow290.3%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \frac{\ell}{\sin k}\right) \]
      11. associate-*r*96.7%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{2}{\color{blue}{k \cdot \left(k \cdot t\right)}} \cdot \frac{\ell}{\sin k}\right) \]
      12. associate-*l/96.8%

        \[\leadsto \frac{\ell}{\tan k} \cdot \color{blue}{\frac{2 \cdot \frac{\ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
      13. associate-*r/96.8%

        \[\leadsto \frac{\ell}{\tan k} \cdot \frac{\color{blue}{\frac{2 \cdot \ell}{\sin k}}}{k \cdot \left(k \cdot t\right)} \]
    10. Simplified96.8%

      \[\leadsto \color{blue}{\frac{\ell}{\tan k} \cdot \frac{\frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
    11. Taylor expanded in k around 0 96.8%

      \[\leadsto \color{blue}{\frac{\ell}{k}} \cdot \frac{\frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)} \]

    if 0.0 < (*.f64 l l) < 9.999999999999999e258

    1. Initial program 42.4%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*42.4%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*42.8%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*42.4%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/44.1%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative44.1%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac45.1%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative45.1%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+54.8%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval54.8%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity54.8%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac54.8%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified54.8%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 89.0%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow289.0%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified89.0%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Step-by-step derivation
      1. associate-*l/89.1%

        \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\left(k \cdot k\right) \cdot t}} \]
      2. associate-*l*96.0%

        \[\leadsto \frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\color{blue}{k \cdot \left(k \cdot t\right)}} \]
    8. Applied egg-rr96.0%

      \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{k \cdot \left(k \cdot t\right)}} \]
    9. Step-by-step derivation
      1. times-frac97.4%

        \[\leadsto \color{blue}{\frac{2}{k} \cdot \frac{\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}}{k \cdot t}} \]
      2. associate-*l/97.3%

        \[\leadsto \frac{2}{k} \cdot \frac{\color{blue}{\frac{\ell \cdot \frac{\ell}{\tan k}}{\sin k}}}{k \cdot t} \]
    10. Simplified97.3%

      \[\leadsto \color{blue}{\frac{2}{k} \cdot \frac{\frac{\ell \cdot \frac{\ell}{\tan k}}{\sin k}}{k \cdot t}} \]

    if 9.999999999999999e258 < (*.f64 l l)

    1. Initial program 18.9%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*18.9%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*18.9%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*18.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/18.9%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative18.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac18.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative18.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+18.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval18.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity18.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac18.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified18.9%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 58.0%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow258.0%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified58.0%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Step-by-step derivation
      1. associate-*l/58.0%

        \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\left(k \cdot k\right) \cdot t}} \]
      2. associate-*l*60.9%

        \[\leadsto \frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\color{blue}{k \cdot \left(k \cdot t\right)}} \]
    8. Applied egg-rr60.9%

      \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{k \cdot \left(k \cdot t\right)}} \]
    9. Step-by-step derivation
      1. associate-*l/60.9%

        \[\leadsto \color{blue}{\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
      2. associate-*r*58.0%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      3. unpow258.0%

        \[\leadsto \frac{2}{\color{blue}{{k}^{2}} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      4. associate-/r*58.0%

        \[\leadsto \color{blue}{\frac{\frac{2}{{k}^{2}}}{t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      5. unpow258.0%

        \[\leadsto \frac{\frac{2}{\color{blue}{k \cdot k}}}{t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      6. associate-*r*67.8%

        \[\leadsto \color{blue}{\left(\frac{\frac{2}{k \cdot k}}{t} \cdot \frac{\ell}{\sin k}\right) \cdot \frac{\ell}{\tan k}} \]
      7. *-commutative67.8%

        \[\leadsto \color{blue}{\frac{\ell}{\tan k} \cdot \left(\frac{\frac{2}{k \cdot k}}{t} \cdot \frac{\ell}{\sin k}\right)} \]
      8. unpow267.8%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{\frac{2}{\color{blue}{{k}^{2}}}}{t} \cdot \frac{\ell}{\sin k}\right) \]
      9. associate-/r*67.8%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \frac{\ell}{\sin k}\right) \]
      10. unpow267.8%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \frac{\ell}{\sin k}\right) \]
      11. associate-*r*75.6%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{2}{\color{blue}{k \cdot \left(k \cdot t\right)}} \cdot \frac{\ell}{\sin k}\right) \]
      12. associate-*l/75.5%

        \[\leadsto \frac{\ell}{\tan k} \cdot \color{blue}{\frac{2 \cdot \frac{\ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
      13. associate-*r/75.5%

        \[\leadsto \frac{\ell}{\tan k} \cdot \frac{\color{blue}{\frac{2 \cdot \ell}{\sin k}}}{k \cdot \left(k \cdot t\right)} \]
    10. Simplified75.5%

      \[\leadsto \color{blue}{\frac{\ell}{\tan k} \cdot \frac{\frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
    11. Taylor expanded in l around 0 67.8%

      \[\leadsto \frac{\ell}{\tan k} \cdot \color{blue}{\left(2 \cdot \frac{\ell}{{k}^{2} \cdot \left(\sin k \cdot t\right)}\right)} \]
    12. Step-by-step derivation
      1. associate-/r*75.4%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(2 \cdot \color{blue}{\frac{\frac{\ell}{{k}^{2}}}{\sin k \cdot t}}\right) \]
      2. unpow275.4%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(2 \cdot \frac{\frac{\ell}{\color{blue}{k \cdot k}}}{\sin k \cdot t}\right) \]
    13. Simplified75.4%

      \[\leadsto \frac{\ell}{\tan k} \cdot \color{blue}{\left(2 \cdot \frac{\frac{\ell}{k \cdot k}}{\sin k \cdot t}\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification90.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\ell \cdot \ell \leq 0:\\ \;\;\;\;\frac{\ell}{k} \cdot \frac{\frac{\ell \cdot 2}{\sin k}}{k \cdot \left(k \cdot t\right)}\\ \mathbf{elif}\;\ell \cdot \ell \leq 10^{+259}:\\ \;\;\;\;\frac{2}{k} \cdot \frac{\frac{\ell \cdot \frac{\ell}{\tan k}}{\sin k}}{k \cdot t}\\ \mathbf{else}:\\ \;\;\;\;\frac{\ell}{\tan k} \cdot \left(2 \cdot \frac{\frac{\ell}{k \cdot k}}{\sin k \cdot t}\right)\\ \end{array} \]

Alternative 3: 81.6% accurate, 1.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{\ell}{\tan k}\\ t_2 := k \cdot \left(k \cdot t\right)\\ \mathbf{if}\;k \leq 8.2 \cdot 10^{-137}:\\ \;\;\;\;\frac{2 \cdot \left(\ell \cdot \frac{\frac{\ell}{k}}{k}\right)}{t_2}\\ \mathbf{elif}\;k \leq 1.08 \cdot 10^{+150}:\\ \;\;\;\;t_1 \cdot \left(2 \cdot \frac{\frac{\ell}{k \cdot k}}{\sin k \cdot t}\right)\\ \mathbf{else}:\\ \;\;\;\;t_1 \cdot \frac{\ell \cdot 2}{\sin k \cdot t_2}\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (let* ((t_1 (/ l (tan k))) (t_2 (* k (* k t))))
   (if (<= k 8.2e-137)
     (/ (* 2.0 (* l (/ (/ l k) k))) t_2)
     (if (<= k 1.08e+150)
       (* t_1 (* 2.0 (/ (/ l (* k k)) (* (sin k) t))))
       (* t_1 (/ (* l 2.0) (* (sin k) t_2)))))))
double code(double t, double l, double k) {
	double t_1 = l / tan(k);
	double t_2 = k * (k * t);
	double tmp;
	if (k <= 8.2e-137) {
		tmp = (2.0 * (l * ((l / k) / k))) / t_2;
	} else if (k <= 1.08e+150) {
		tmp = t_1 * (2.0 * ((l / (k * k)) / (sin(k) * t)));
	} else {
		tmp = t_1 * ((l * 2.0) / (sin(k) * t_2));
	}
	return tmp;
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = l / tan(k)
    t_2 = k * (k * t)
    if (k <= 8.2d-137) then
        tmp = (2.0d0 * (l * ((l / k) / k))) / t_2
    else if (k <= 1.08d+150) then
        tmp = t_1 * (2.0d0 * ((l / (k * k)) / (sin(k) * t)))
    else
        tmp = t_1 * ((l * 2.0d0) / (sin(k) * t_2))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double t_1 = l / Math.tan(k);
	double t_2 = k * (k * t);
	double tmp;
	if (k <= 8.2e-137) {
		tmp = (2.0 * (l * ((l / k) / k))) / t_2;
	} else if (k <= 1.08e+150) {
		tmp = t_1 * (2.0 * ((l / (k * k)) / (Math.sin(k) * t)));
	} else {
		tmp = t_1 * ((l * 2.0) / (Math.sin(k) * t_2));
	}
	return tmp;
}
def code(t, l, k):
	t_1 = l / math.tan(k)
	t_2 = k * (k * t)
	tmp = 0
	if k <= 8.2e-137:
		tmp = (2.0 * (l * ((l / k) / k))) / t_2
	elif k <= 1.08e+150:
		tmp = t_1 * (2.0 * ((l / (k * k)) / (math.sin(k) * t)))
	else:
		tmp = t_1 * ((l * 2.0) / (math.sin(k) * t_2))
	return tmp
function code(t, l, k)
	t_1 = Float64(l / tan(k))
	t_2 = Float64(k * Float64(k * t))
	tmp = 0.0
	if (k <= 8.2e-137)
		tmp = Float64(Float64(2.0 * Float64(l * Float64(Float64(l / k) / k))) / t_2);
	elseif (k <= 1.08e+150)
		tmp = Float64(t_1 * Float64(2.0 * Float64(Float64(l / Float64(k * k)) / Float64(sin(k) * t))));
	else
		tmp = Float64(t_1 * Float64(Float64(l * 2.0) / Float64(sin(k) * t_2)));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	t_1 = l / tan(k);
	t_2 = k * (k * t);
	tmp = 0.0;
	if (k <= 8.2e-137)
		tmp = (2.0 * (l * ((l / k) / k))) / t_2;
	elseif (k <= 1.08e+150)
		tmp = t_1 * (2.0 * ((l / (k * k)) / (sin(k) * t)));
	else
		tmp = t_1 * ((l * 2.0) / (sin(k) * t_2));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := Block[{t$95$1 = N[(l / N[Tan[k], $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(k * N[(k * t), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[k, 8.2e-137], N[(N[(2.0 * N[(l * N[(N[(l / k), $MachinePrecision] / k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / t$95$2), $MachinePrecision], If[LessEqual[k, 1.08e+150], N[(t$95$1 * N[(2.0 * N[(N[(l / N[(k * k), $MachinePrecision]), $MachinePrecision] / N[(N[Sin[k], $MachinePrecision] * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(t$95$1 * N[(N[(l * 2.0), $MachinePrecision] / N[(N[Sin[k], $MachinePrecision] * t$95$2), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{\ell}{\tan k}\\
t_2 := k \cdot \left(k \cdot t\right)\\
\mathbf{if}\;k \leq 8.2 \cdot 10^{-137}:\\
\;\;\;\;\frac{2 \cdot \left(\ell \cdot \frac{\frac{\ell}{k}}{k}\right)}{t_2}\\

\mathbf{elif}\;k \leq 1.08 \cdot 10^{+150}:\\
\;\;\;\;t_1 \cdot \left(2 \cdot \frac{\frac{\ell}{k \cdot k}}{\sin k \cdot t}\right)\\

\mathbf{else}:\\
\;\;\;\;t_1 \cdot \frac{\ell \cdot 2}{\sin k \cdot t_2}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if k < 8.1999999999999997e-137

    1. Initial program 31.7%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*31.7%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*32.0%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*31.7%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/32.3%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative32.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac33.0%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative33.0%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+38.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval38.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity38.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac45.6%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified45.6%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 80.3%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow280.3%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified80.3%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Taylor expanded in k around 0 67.2%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \color{blue}{\frac{{\ell}^{2}}{{k}^{2}}} \]
    8. Step-by-step derivation
      1. unpow267.2%

        \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \frac{\color{blue}{\ell \cdot \ell}}{{k}^{2}} \]
      2. unpow267.2%

        \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \frac{\ell \cdot \ell}{\color{blue}{k \cdot k}} \]
    9. Simplified67.2%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \color{blue}{\frac{\ell \cdot \ell}{k \cdot k}} \]
    10. Taylor expanded in l around 0 67.2%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \color{blue}{\frac{{\ell}^{2}}{{k}^{2}}} \]
    11. Step-by-step derivation
      1. *-rgt-identity67.2%

        \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \frac{\color{blue}{{\ell}^{2} \cdot 1}}{{k}^{2}} \]
      2. associate-*r/67.2%

        \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \color{blue}{\left({\ell}^{2} \cdot \frac{1}{{k}^{2}}\right)} \]
      3. unpow267.2%

        \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \left(\color{blue}{\left(\ell \cdot \ell\right)} \cdot \frac{1}{{k}^{2}}\right) \]
      4. unpow267.2%

        \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \left(\left(\ell \cdot \ell\right) \cdot \frac{1}{\color{blue}{k \cdot k}}\right) \]
      5. associate-*l*74.4%

        \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \color{blue}{\left(\ell \cdot \left(\ell \cdot \frac{1}{k \cdot k}\right)\right)} \]
      6. unpow274.4%

        \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \left(\ell \cdot \left(\ell \cdot \frac{1}{\color{blue}{{k}^{2}}}\right)\right) \]
      7. associate-*r/74.4%

        \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \left(\ell \cdot \color{blue}{\frac{\ell \cdot 1}{{k}^{2}}}\right) \]
      8. *-rgt-identity74.4%

        \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \left(\ell \cdot \frac{\color{blue}{\ell}}{{k}^{2}}\right) \]
      9. unpow274.4%

        \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \left(\ell \cdot \frac{\ell}{\color{blue}{k \cdot k}}\right) \]
    12. Simplified74.4%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \color{blue}{\left(\ell \cdot \frac{\ell}{k \cdot k}\right)} \]
    13. Step-by-step derivation
      1. associate-*r*74.4%

        \[\leadsto \frac{2}{\color{blue}{k \cdot \left(k \cdot t\right)}} \cdot \left(\ell \cdot \frac{\ell}{k \cdot k}\right) \]
      2. associate-*l/74.4%

        \[\leadsto \color{blue}{\frac{2 \cdot \left(\ell \cdot \frac{\ell}{k \cdot k}\right)}{k \cdot \left(k \cdot t\right)}} \]
      3. associate-/r*77.3%

        \[\leadsto \frac{2 \cdot \left(\ell \cdot \color{blue}{\frac{\frac{\ell}{k}}{k}}\right)}{k \cdot \left(k \cdot t\right)} \]
    14. Applied egg-rr77.3%

      \[\leadsto \color{blue}{\frac{2 \cdot \left(\ell \cdot \frac{\frac{\ell}{k}}{k}\right)}{k \cdot \left(k \cdot t\right)}} \]

    if 8.1999999999999997e-137 < k < 1.08e150

    1. Initial program 23.3%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*23.3%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*23.3%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*23.3%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/25.0%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative25.0%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac25.2%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative25.2%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+36.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval36.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity36.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac38.8%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified38.8%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 79.6%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow279.6%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified79.6%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Step-by-step derivation
      1. associate-*l/79.6%

        \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\left(k \cdot k\right) \cdot t}} \]
      2. associate-*l*79.6%

        \[\leadsto \frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\color{blue}{k \cdot \left(k \cdot t\right)}} \]
    8. Applied egg-rr79.6%

      \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{k \cdot \left(k \cdot t\right)}} \]
    9. Step-by-step derivation
      1. associate-*l/79.6%

        \[\leadsto \color{blue}{\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
      2. associate-*r*79.6%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      3. unpow279.6%

        \[\leadsto \frac{2}{\color{blue}{{k}^{2}} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      4. associate-/r*79.7%

        \[\leadsto \color{blue}{\frac{\frac{2}{{k}^{2}}}{t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      5. unpow279.7%

        \[\leadsto \frac{\frac{2}{\color{blue}{k \cdot k}}}{t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      6. associate-*r*92.1%

        \[\leadsto \color{blue}{\left(\frac{\frac{2}{k \cdot k}}{t} \cdot \frac{\ell}{\sin k}\right) \cdot \frac{\ell}{\tan k}} \]
      7. *-commutative92.1%

        \[\leadsto \color{blue}{\frac{\ell}{\tan k} \cdot \left(\frac{\frac{2}{k \cdot k}}{t} \cdot \frac{\ell}{\sin k}\right)} \]
      8. unpow292.1%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{\frac{2}{\color{blue}{{k}^{2}}}}{t} \cdot \frac{\ell}{\sin k}\right) \]
      9. associate-/r*91.9%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \frac{\ell}{\sin k}\right) \]
      10. unpow291.9%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \frac{\ell}{\sin k}\right) \]
      11. associate-*r*91.9%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{2}{\color{blue}{k \cdot \left(k \cdot t\right)}} \cdot \frac{\ell}{\sin k}\right) \]
      12. associate-*l/92.0%

        \[\leadsto \frac{\ell}{\tan k} \cdot \color{blue}{\frac{2 \cdot \frac{\ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
      13. associate-*r/92.0%

        \[\leadsto \frac{\ell}{\tan k} \cdot \frac{\color{blue}{\frac{2 \cdot \ell}{\sin k}}}{k \cdot \left(k \cdot t\right)} \]
    10. Simplified92.0%

      \[\leadsto \color{blue}{\frac{\ell}{\tan k} \cdot \frac{\frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
    11. Taylor expanded in l around 0 92.0%

      \[\leadsto \frac{\ell}{\tan k} \cdot \color{blue}{\left(2 \cdot \frac{\ell}{{k}^{2} \cdot \left(\sin k \cdot t\right)}\right)} \]
    12. Step-by-step derivation
      1. associate-/r*95.7%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(2 \cdot \color{blue}{\frac{\frac{\ell}{{k}^{2}}}{\sin k \cdot t}}\right) \]
      2. unpow295.7%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(2 \cdot \frac{\frac{\ell}{\color{blue}{k \cdot k}}}{\sin k \cdot t}\right) \]
    13. Simplified95.7%

      \[\leadsto \frac{\ell}{\tan k} \cdot \color{blue}{\left(2 \cdot \frac{\frac{\ell}{k \cdot k}}{\sin k \cdot t}\right)} \]

    if 1.08e150 < k

    1. Initial program 34.8%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*34.8%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*34.8%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*34.8%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/34.8%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative34.8%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac34.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative34.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+44.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval44.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity44.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac44.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified44.9%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 65.4%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow265.4%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified65.4%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Step-by-step derivation
      1. associate-*l/65.4%

        \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\left(k \cdot k\right) \cdot t}} \]
      2. associate-*l*75.0%

        \[\leadsto \frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\color{blue}{k \cdot \left(k \cdot t\right)}} \]
    8. Applied egg-rr75.0%

      \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{k \cdot \left(k \cdot t\right)}} \]
    9. Step-by-step derivation
      1. associate-*l/75.0%

        \[\leadsto \color{blue}{\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
      2. associate-*r*65.4%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      3. unpow265.4%

        \[\leadsto \frac{2}{\color{blue}{{k}^{2}} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      4. associate-/r*65.4%

        \[\leadsto \color{blue}{\frac{\frac{2}{{k}^{2}}}{t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      5. unpow265.4%

        \[\leadsto \frac{\frac{2}{\color{blue}{k \cdot k}}}{t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      6. associate-*r*69.3%

        \[\leadsto \color{blue}{\left(\frac{\frac{2}{k \cdot k}}{t} \cdot \frac{\ell}{\sin k}\right) \cdot \frac{\ell}{\tan k}} \]
      7. *-commutative69.3%

        \[\leadsto \color{blue}{\frac{\ell}{\tan k} \cdot \left(\frac{\frac{2}{k \cdot k}}{t} \cdot \frac{\ell}{\sin k}\right)} \]
      8. unpow269.3%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{\frac{2}{\color{blue}{{k}^{2}}}}{t} \cdot \frac{\ell}{\sin k}\right) \]
      9. associate-/r*69.3%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \frac{\ell}{\sin k}\right) \]
      10. unpow269.3%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \frac{\ell}{\sin k}\right) \]
      11. associate-*r*85.1%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{2}{\color{blue}{k \cdot \left(k \cdot t\right)}} \cdot \frac{\ell}{\sin k}\right) \]
      12. associate-*l/85.1%

        \[\leadsto \frac{\ell}{\tan k} \cdot \color{blue}{\frac{2 \cdot \frac{\ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
      13. associate-*r/85.1%

        \[\leadsto \frac{\ell}{\tan k} \cdot \frac{\color{blue}{\frac{2 \cdot \ell}{\sin k}}}{k \cdot \left(k \cdot t\right)} \]
    10. Simplified85.1%

      \[\leadsto \color{blue}{\frac{\ell}{\tan k} \cdot \frac{\frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
    11. Step-by-step derivation
      1. frac-times75.0%

        \[\leadsto \color{blue}{\frac{\ell \cdot \frac{2 \cdot \ell}{\sin k}}{\tan k \cdot \left(k \cdot \left(k \cdot t\right)\right)}} \]
    12. Applied egg-rr75.0%

      \[\leadsto \color{blue}{\frac{\ell \cdot \frac{2 \cdot \ell}{\sin k}}{\tan k \cdot \left(k \cdot \left(k \cdot t\right)\right)}} \]
    13. Step-by-step derivation
      1. times-frac85.1%

        \[\leadsto \color{blue}{\frac{\ell}{\tan k} \cdot \frac{\frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
      2. associate-/l/85.1%

        \[\leadsto \frac{\ell}{\tan k} \cdot \color{blue}{\frac{2 \cdot \ell}{\left(k \cdot \left(k \cdot t\right)\right) \cdot \sin k}} \]
    14. Simplified85.1%

      \[\leadsto \color{blue}{\frac{\ell}{\tan k} \cdot \frac{2 \cdot \ell}{\left(k \cdot \left(k \cdot t\right)\right) \cdot \sin k}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification82.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;k \leq 8.2 \cdot 10^{-137}:\\ \;\;\;\;\frac{2 \cdot \left(\ell \cdot \frac{\frac{\ell}{k}}{k}\right)}{k \cdot \left(k \cdot t\right)}\\ \mathbf{elif}\;k \leq 1.08 \cdot 10^{+150}:\\ \;\;\;\;\frac{\ell}{\tan k} \cdot \left(2 \cdot \frac{\frac{\ell}{k \cdot k}}{\sin k \cdot t}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{\ell}{\tan k} \cdot \frac{\ell \cdot 2}{\sin k \cdot \left(k \cdot \left(k \cdot t\right)\right)}\\ \end{array} \]

Alternative 4: 79.3% accurate, 1.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\ell \leq 1.9 \cdot 10^{-196}:\\ \;\;\;\;\frac{\ell}{k} \cdot \frac{\frac{\ell \cdot 2}{\sin k}}{k \cdot \left(k \cdot t\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{2}{k} \cdot \frac{\frac{\ell \cdot \frac{\ell}{\tan k}}{\sin k}}{k \cdot t}\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (if (<= l 1.9e-196)
   (* (/ l k) (/ (/ (* l 2.0) (sin k)) (* k (* k t))))
   (* (/ 2.0 k) (/ (/ (* l (/ l (tan k))) (sin k)) (* k t)))))
double code(double t, double l, double k) {
	double tmp;
	if (l <= 1.9e-196) {
		tmp = (l / k) * (((l * 2.0) / sin(k)) / (k * (k * t)));
	} else {
		tmp = (2.0 / k) * (((l * (l / tan(k))) / sin(k)) / (k * t));
	}
	return tmp;
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    real(8) :: tmp
    if (l <= 1.9d-196) then
        tmp = (l / k) * (((l * 2.0d0) / sin(k)) / (k * (k * t)))
    else
        tmp = (2.0d0 / k) * (((l * (l / tan(k))) / sin(k)) / (k * t))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double tmp;
	if (l <= 1.9e-196) {
		tmp = (l / k) * (((l * 2.0) / Math.sin(k)) / (k * (k * t)));
	} else {
		tmp = (2.0 / k) * (((l * (l / Math.tan(k))) / Math.sin(k)) / (k * t));
	}
	return tmp;
}
def code(t, l, k):
	tmp = 0
	if l <= 1.9e-196:
		tmp = (l / k) * (((l * 2.0) / math.sin(k)) / (k * (k * t)))
	else:
		tmp = (2.0 / k) * (((l * (l / math.tan(k))) / math.sin(k)) / (k * t))
	return tmp
function code(t, l, k)
	tmp = 0.0
	if (l <= 1.9e-196)
		tmp = Float64(Float64(l / k) * Float64(Float64(Float64(l * 2.0) / sin(k)) / Float64(k * Float64(k * t))));
	else
		tmp = Float64(Float64(2.0 / k) * Float64(Float64(Float64(l * Float64(l / tan(k))) / sin(k)) / Float64(k * t)));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	tmp = 0.0;
	if (l <= 1.9e-196)
		tmp = (l / k) * (((l * 2.0) / sin(k)) / (k * (k * t)));
	else
		tmp = (2.0 / k) * (((l * (l / tan(k))) / sin(k)) / (k * t));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := If[LessEqual[l, 1.9e-196], N[(N[(l / k), $MachinePrecision] * N[(N[(N[(l * 2.0), $MachinePrecision] / N[Sin[k], $MachinePrecision]), $MachinePrecision] / N[(k * N[(k * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(2.0 / k), $MachinePrecision] * N[(N[(N[(l * N[(l / N[Tan[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[Sin[k], $MachinePrecision]), $MachinePrecision] / N[(k * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;\ell \leq 1.9 \cdot 10^{-196}:\\
\;\;\;\;\frac{\ell}{k} \cdot \frac{\frac{\ell \cdot 2}{\sin k}}{k \cdot \left(k \cdot t\right)}\\

\mathbf{else}:\\
\;\;\;\;\frac{2}{k} \cdot \frac{\frac{\ell \cdot \frac{\ell}{\tan k}}{\sin k}}{k \cdot t}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if l < 1.9000000000000001e-196

    1. Initial program 30.8%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*30.8%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*31.1%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*30.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/31.6%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative31.6%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac32.3%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative32.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+41.2%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval41.2%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity41.2%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac48.2%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified48.2%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 80.2%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow280.2%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified80.2%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Step-by-step derivation
      1. associate-*l/80.2%

        \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\left(k \cdot k\right) \cdot t}} \]
      2. associate-*l*86.1%

        \[\leadsto \frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\color{blue}{k \cdot \left(k \cdot t\right)}} \]
    8. Applied egg-rr86.1%

      \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{k \cdot \left(k \cdot t\right)}} \]
    9. Step-by-step derivation
      1. associate-*l/86.1%

        \[\leadsto \color{blue}{\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
      2. associate-*r*80.2%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      3. unpow280.2%

        \[\leadsto \frac{2}{\color{blue}{{k}^{2}} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      4. associate-/r*80.2%

        \[\leadsto \color{blue}{\frac{\frac{2}{{k}^{2}}}{t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      5. unpow280.2%

        \[\leadsto \frac{\frac{2}{\color{blue}{k \cdot k}}}{t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      6. associate-*r*85.5%

        \[\leadsto \color{blue}{\left(\frac{\frac{2}{k \cdot k}}{t} \cdot \frac{\ell}{\sin k}\right) \cdot \frac{\ell}{\tan k}} \]
      7. *-commutative85.5%

        \[\leadsto \color{blue}{\frac{\ell}{\tan k} \cdot \left(\frac{\frac{2}{k \cdot k}}{t} \cdot \frac{\ell}{\sin k}\right)} \]
      8. unpow285.5%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{\frac{2}{\color{blue}{{k}^{2}}}}{t} \cdot \frac{\ell}{\sin k}\right) \]
      9. associate-/r*85.4%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \frac{\ell}{\sin k}\right) \]
      10. unpow285.4%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \frac{\ell}{\sin k}\right) \]
      11. associate-*r*91.9%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{2}{\color{blue}{k \cdot \left(k \cdot t\right)}} \cdot \frac{\ell}{\sin k}\right) \]
      12. associate-*l/91.9%

        \[\leadsto \frac{\ell}{\tan k} \cdot \color{blue}{\frac{2 \cdot \frac{\ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
      13. associate-*r/91.9%

        \[\leadsto \frac{\ell}{\tan k} \cdot \frac{\color{blue}{\frac{2 \cdot \ell}{\sin k}}}{k \cdot \left(k \cdot t\right)} \]
    10. Simplified91.9%

      \[\leadsto \color{blue}{\frac{\ell}{\tan k} \cdot \frac{\frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
    11. Taylor expanded in k around 0 79.7%

      \[\leadsto \color{blue}{\frac{\ell}{k}} \cdot \frac{\frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)} \]

    if 1.9000000000000001e-196 < l

    1. Initial program 29.0%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*29.0%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*29.0%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*29.0%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/29.9%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative29.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac30.0%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative30.0%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+36.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval36.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity36.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac38.1%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified38.1%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 76.0%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow276.0%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified76.0%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Step-by-step derivation
      1. associate-*l/76.0%

        \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\left(k \cdot k\right) \cdot t}} \]
      2. associate-*l*81.4%

        \[\leadsto \frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\color{blue}{k \cdot \left(k \cdot t\right)}} \]
    8. Applied egg-rr81.4%

      \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{k \cdot \left(k \cdot t\right)}} \]
    9. Step-by-step derivation
      1. times-frac81.2%

        \[\leadsto \color{blue}{\frac{2}{k} \cdot \frac{\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}}{k \cdot t}} \]
      2. associate-*l/81.2%

        \[\leadsto \frac{2}{k} \cdot \frac{\color{blue}{\frac{\ell \cdot \frac{\ell}{\tan k}}{\sin k}}}{k \cdot t} \]
    10. Simplified81.2%

      \[\leadsto \color{blue}{\frac{2}{k} \cdot \frac{\frac{\ell \cdot \frac{\ell}{\tan k}}{\sin k}}{k \cdot t}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification80.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\ell \leq 1.9 \cdot 10^{-196}:\\ \;\;\;\;\frac{\ell}{k} \cdot \frac{\frac{\ell \cdot 2}{\sin k}}{k \cdot \left(k \cdot t\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{2}{k} \cdot \frac{\frac{\ell \cdot \frac{\ell}{\tan k}}{\sin k}}{k \cdot t}\\ \end{array} \]

Alternative 5: 82.8% accurate, 1.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;k \leq 8.5 \cdot 10^{-99}:\\ \;\;\;\;\frac{2 \cdot \left(\ell \cdot \frac{\frac{\ell}{k}}{k}\right)}{k \cdot \left(k \cdot t\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{\ell}{k \cdot \tan k} \cdot \left(\frac{\frac{2}{\sin k}}{k} \cdot \frac{\ell}{t}\right)\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (if (<= k 8.5e-99)
   (/ (* 2.0 (* l (/ (/ l k) k))) (* k (* k t)))
   (* (/ l (* k (tan k))) (* (/ (/ 2.0 (sin k)) k) (/ l t)))))
double code(double t, double l, double k) {
	double tmp;
	if (k <= 8.5e-99) {
		tmp = (2.0 * (l * ((l / k) / k))) / (k * (k * t));
	} else {
		tmp = (l / (k * tan(k))) * (((2.0 / sin(k)) / k) * (l / t));
	}
	return tmp;
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    real(8) :: tmp
    if (k <= 8.5d-99) then
        tmp = (2.0d0 * (l * ((l / k) / k))) / (k * (k * t))
    else
        tmp = (l / (k * tan(k))) * (((2.0d0 / sin(k)) / k) * (l / t))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double tmp;
	if (k <= 8.5e-99) {
		tmp = (2.0 * (l * ((l / k) / k))) / (k * (k * t));
	} else {
		tmp = (l / (k * Math.tan(k))) * (((2.0 / Math.sin(k)) / k) * (l / t));
	}
	return tmp;
}
def code(t, l, k):
	tmp = 0
	if k <= 8.5e-99:
		tmp = (2.0 * (l * ((l / k) / k))) / (k * (k * t))
	else:
		tmp = (l / (k * math.tan(k))) * (((2.0 / math.sin(k)) / k) * (l / t))
	return tmp
function code(t, l, k)
	tmp = 0.0
	if (k <= 8.5e-99)
		tmp = Float64(Float64(2.0 * Float64(l * Float64(Float64(l / k) / k))) / Float64(k * Float64(k * t)));
	else
		tmp = Float64(Float64(l / Float64(k * tan(k))) * Float64(Float64(Float64(2.0 / sin(k)) / k) * Float64(l / t)));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	tmp = 0.0;
	if (k <= 8.5e-99)
		tmp = (2.0 * (l * ((l / k) / k))) / (k * (k * t));
	else
		tmp = (l / (k * tan(k))) * (((2.0 / sin(k)) / k) * (l / t));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := If[LessEqual[k, 8.5e-99], N[(N[(2.0 * N[(l * N[(N[(l / k), $MachinePrecision] / k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(k * N[(k * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(l / N[(k * N[Tan[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(N[(N[(2.0 / N[Sin[k], $MachinePrecision]), $MachinePrecision] / k), $MachinePrecision] * N[(l / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;k \leq 8.5 \cdot 10^{-99}:\\
\;\;\;\;\frac{2 \cdot \left(\ell \cdot \frac{\frac{\ell}{k}}{k}\right)}{k \cdot \left(k \cdot t\right)}\\

\mathbf{else}:\\
\;\;\;\;\frac{\ell}{k \cdot \tan k} \cdot \left(\frac{\frac{2}{\sin k}}{k} \cdot \frac{\ell}{t}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if k < 8.5000000000000004e-99

    1. Initial program 32.6%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*32.5%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*32.8%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*32.6%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/33.7%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative33.7%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac34.4%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative34.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+39.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval39.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity39.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac46.8%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified46.8%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 81.1%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow281.1%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified81.1%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Taylor expanded in k around 0 67.5%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \color{blue}{\frac{{\ell}^{2}}{{k}^{2}}} \]
    8. Step-by-step derivation
      1. unpow267.5%

        \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \frac{\color{blue}{\ell \cdot \ell}}{{k}^{2}} \]
      2. unpow267.5%

        \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \frac{\ell \cdot \ell}{\color{blue}{k \cdot k}} \]
    9. Simplified67.5%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \color{blue}{\frac{\ell \cdot \ell}{k \cdot k}} \]
    10. Taylor expanded in l around 0 67.5%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \color{blue}{\frac{{\ell}^{2}}{{k}^{2}}} \]
    11. Step-by-step derivation
      1. *-rgt-identity67.5%

        \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \frac{\color{blue}{{\ell}^{2} \cdot 1}}{{k}^{2}} \]
      2. associate-*r/67.5%

        \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \color{blue}{\left({\ell}^{2} \cdot \frac{1}{{k}^{2}}\right)} \]
      3. unpow267.5%

        \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \left(\color{blue}{\left(\ell \cdot \ell\right)} \cdot \frac{1}{{k}^{2}}\right) \]
      4. unpow267.5%

        \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \left(\left(\ell \cdot \ell\right) \cdot \frac{1}{\color{blue}{k \cdot k}}\right) \]
      5. associate-*l*75.5%

        \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \color{blue}{\left(\ell \cdot \left(\ell \cdot \frac{1}{k \cdot k}\right)\right)} \]
      6. unpow275.5%

        \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \left(\ell \cdot \left(\ell \cdot \frac{1}{\color{blue}{{k}^{2}}}\right)\right) \]
      7. associate-*r/75.5%

        \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \left(\ell \cdot \color{blue}{\frac{\ell \cdot 1}{{k}^{2}}}\right) \]
      8. *-rgt-identity75.5%

        \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \left(\ell \cdot \frac{\color{blue}{\ell}}{{k}^{2}}\right) \]
      9. unpow275.5%

        \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \left(\ell \cdot \frac{\ell}{\color{blue}{k \cdot k}}\right) \]
    12. Simplified75.5%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \color{blue}{\left(\ell \cdot \frac{\ell}{k \cdot k}\right)} \]
    13. Step-by-step derivation
      1. associate-*r*75.5%

        \[\leadsto \frac{2}{\color{blue}{k \cdot \left(k \cdot t\right)}} \cdot \left(\ell \cdot \frac{\ell}{k \cdot k}\right) \]
      2. associate-*l/75.5%

        \[\leadsto \color{blue}{\frac{2 \cdot \left(\ell \cdot \frac{\ell}{k \cdot k}\right)}{k \cdot \left(k \cdot t\right)}} \]
      3. associate-/r*78.2%

        \[\leadsto \frac{2 \cdot \left(\ell \cdot \color{blue}{\frac{\frac{\ell}{k}}{k}}\right)}{k \cdot \left(k \cdot t\right)} \]
    14. Applied egg-rr78.2%

      \[\leadsto \color{blue}{\frac{2 \cdot \left(\ell \cdot \frac{\frac{\ell}{k}}{k}\right)}{k \cdot \left(k \cdot t\right)}} \]

    if 8.5000000000000004e-99 < k

    1. Initial program 24.6%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*24.6%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*24.6%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*24.6%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/24.6%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative24.6%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac24.7%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative24.7%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+37.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval37.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity37.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac37.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified37.4%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 72.6%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow272.6%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified72.6%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Step-by-step derivation
      1. associate-*l/72.6%

        \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\left(k \cdot k\right) \cdot t}} \]
      2. associate-*l*76.2%

        \[\leadsto \frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\color{blue}{k \cdot \left(k \cdot t\right)}} \]
    8. Applied egg-rr76.2%

      \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{k \cdot \left(k \cdot t\right)}} \]
    9. Step-by-step derivation
      1. associate-*l/76.2%

        \[\leadsto \color{blue}{\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
      2. associate-*r*72.6%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      3. unpow272.6%

        \[\leadsto \frac{2}{\color{blue}{{k}^{2}} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      4. associate-/r*72.6%

        \[\leadsto \color{blue}{\frac{\frac{2}{{k}^{2}}}{t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      5. unpow272.6%

        \[\leadsto \frac{\frac{2}{\color{blue}{k \cdot k}}}{t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      6. associate-*r*83.5%

        \[\leadsto \color{blue}{\left(\frac{\frac{2}{k \cdot k}}{t} \cdot \frac{\ell}{\sin k}\right) \cdot \frac{\ell}{\tan k}} \]
      7. *-commutative83.5%

        \[\leadsto \color{blue}{\frac{\ell}{\tan k} \cdot \left(\frac{\frac{2}{k \cdot k}}{t} \cdot \frac{\ell}{\sin k}\right)} \]
      8. unpow283.5%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{\frac{2}{\color{blue}{{k}^{2}}}}{t} \cdot \frac{\ell}{\sin k}\right) \]
      9. associate-/r*83.5%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \frac{\ell}{\sin k}\right) \]
      10. unpow283.5%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \frac{\ell}{\sin k}\right) \]
      11. associate-*r*89.4%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{2}{\color{blue}{k \cdot \left(k \cdot t\right)}} \cdot \frac{\ell}{\sin k}\right) \]
      12. associate-*l/89.4%

        \[\leadsto \frac{\ell}{\tan k} \cdot \color{blue}{\frac{2 \cdot \frac{\ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
      13. associate-*r/89.4%

        \[\leadsto \frac{\ell}{\tan k} \cdot \frac{\color{blue}{\frac{2 \cdot \ell}{\sin k}}}{k \cdot \left(k \cdot t\right)} \]
    10. Simplified89.4%

      \[\leadsto \color{blue}{\frac{\ell}{\tan k} \cdot \frac{\frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
    11. Step-by-step derivation
      1. associate-*r/76.2%

        \[\leadsto \color{blue}{\frac{\frac{\ell}{\tan k} \cdot \frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
    12. Applied egg-rr76.2%

      \[\leadsto \color{blue}{\frac{\frac{\ell}{\tan k} \cdot \frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
    13. Step-by-step derivation
      1. expm1-log1p-u65.7%

        \[\leadsto \color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left(\frac{\frac{\ell}{\tan k} \cdot \frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)}\right)\right)} \]
      2. expm1-udef56.0%

        \[\leadsto \color{blue}{e^{\mathsf{log1p}\left(\frac{\frac{\ell}{\tan k} \cdot \frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)}\right)} - 1} \]
      3. times-frac59.5%

        \[\leadsto e^{\mathsf{log1p}\left(\color{blue}{\frac{\frac{\ell}{\tan k}}{k} \cdot \frac{\frac{2 \cdot \ell}{\sin k}}{k \cdot t}}\right)} - 1 \]
      4. associate-/l*59.5%

        \[\leadsto e^{\mathsf{log1p}\left(\frac{\frac{\ell}{\tan k}}{k} \cdot \frac{\color{blue}{\frac{2}{\frac{\sin k}{\ell}}}}{k \cdot t}\right)} - 1 \]
    14. Applied egg-rr59.5%

      \[\leadsto \color{blue}{e^{\mathsf{log1p}\left(\frac{\frac{\ell}{\tan k}}{k} \cdot \frac{\frac{2}{\frac{\sin k}{\ell}}}{k \cdot t}\right)} - 1} \]
    15. Step-by-step derivation
      1. expm1-def74.7%

        \[\leadsto \color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left(\frac{\frac{\ell}{\tan k}}{k} \cdot \frac{\frac{2}{\frac{\sin k}{\ell}}}{k \cdot t}\right)\right)} \]
      2. expm1-log1p92.6%

        \[\leadsto \color{blue}{\frac{\frac{\ell}{\tan k}}{k} \cdot \frac{\frac{2}{\frac{\sin k}{\ell}}}{k \cdot t}} \]
      3. associate-/l/92.6%

        \[\leadsto \color{blue}{\frac{\ell}{k \cdot \tan k}} \cdot \frac{\frac{2}{\frac{\sin k}{\ell}}}{k \cdot t} \]
      4. associate-/r/92.6%

        \[\leadsto \frac{\ell}{k \cdot \tan k} \cdot \frac{\color{blue}{\frac{2}{\sin k} \cdot \ell}}{k \cdot t} \]
      5. times-frac94.9%

        \[\leadsto \frac{\ell}{k \cdot \tan k} \cdot \color{blue}{\left(\frac{\frac{2}{\sin k}}{k} \cdot \frac{\ell}{t}\right)} \]
    16. Simplified94.9%

      \[\leadsto \color{blue}{\frac{\ell}{k \cdot \tan k} \cdot \left(\frac{\frac{2}{\sin k}}{k} \cdot \frac{\ell}{t}\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification83.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;k \leq 8.5 \cdot 10^{-99}:\\ \;\;\;\;\frac{2 \cdot \left(\ell \cdot \frac{\frac{\ell}{k}}{k}\right)}{k \cdot \left(k \cdot t\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{\ell}{k \cdot \tan k} \cdot \left(\frac{\frac{2}{\sin k}}{k} \cdot \frac{\ell}{t}\right)\\ \end{array} \]

Alternative 6: 96.2% accurate, 1.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\ell \leq 10^{+203}:\\ \;\;\;\;\frac{\frac{\ell}{\tan k}}{k} \cdot \frac{\frac{2}{\frac{\sin k}{\ell}}}{k \cdot t}\\ \mathbf{else}:\\ \;\;\;\;\frac{\ell}{k \cdot \tan k} \cdot \left(\frac{\frac{2}{\sin k}}{k} \cdot \frac{\ell}{t}\right)\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (if (<= l 1e+203)
   (* (/ (/ l (tan k)) k) (/ (/ 2.0 (/ (sin k) l)) (* k t)))
   (* (/ l (* k (tan k))) (* (/ (/ 2.0 (sin k)) k) (/ l t)))))
double code(double t, double l, double k) {
	double tmp;
	if (l <= 1e+203) {
		tmp = ((l / tan(k)) / k) * ((2.0 / (sin(k) / l)) / (k * t));
	} else {
		tmp = (l / (k * tan(k))) * (((2.0 / sin(k)) / k) * (l / t));
	}
	return tmp;
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    real(8) :: tmp
    if (l <= 1d+203) then
        tmp = ((l / tan(k)) / k) * ((2.0d0 / (sin(k) / l)) / (k * t))
    else
        tmp = (l / (k * tan(k))) * (((2.0d0 / sin(k)) / k) * (l / t))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double tmp;
	if (l <= 1e+203) {
		tmp = ((l / Math.tan(k)) / k) * ((2.0 / (Math.sin(k) / l)) / (k * t));
	} else {
		tmp = (l / (k * Math.tan(k))) * (((2.0 / Math.sin(k)) / k) * (l / t));
	}
	return tmp;
}
def code(t, l, k):
	tmp = 0
	if l <= 1e+203:
		tmp = ((l / math.tan(k)) / k) * ((2.0 / (math.sin(k) / l)) / (k * t))
	else:
		tmp = (l / (k * math.tan(k))) * (((2.0 / math.sin(k)) / k) * (l / t))
	return tmp
function code(t, l, k)
	tmp = 0.0
	if (l <= 1e+203)
		tmp = Float64(Float64(Float64(l / tan(k)) / k) * Float64(Float64(2.0 / Float64(sin(k) / l)) / Float64(k * t)));
	else
		tmp = Float64(Float64(l / Float64(k * tan(k))) * Float64(Float64(Float64(2.0 / sin(k)) / k) * Float64(l / t)));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	tmp = 0.0;
	if (l <= 1e+203)
		tmp = ((l / tan(k)) / k) * ((2.0 / (sin(k) / l)) / (k * t));
	else
		tmp = (l / (k * tan(k))) * (((2.0 / sin(k)) / k) * (l / t));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := If[LessEqual[l, 1e+203], N[(N[(N[(l / N[Tan[k], $MachinePrecision]), $MachinePrecision] / k), $MachinePrecision] * N[(N[(2.0 / N[(N[Sin[k], $MachinePrecision] / l), $MachinePrecision]), $MachinePrecision] / N[(k * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(l / N[(k * N[Tan[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(N[(N[(2.0 / N[Sin[k], $MachinePrecision]), $MachinePrecision] / k), $MachinePrecision] * N[(l / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;\ell \leq 10^{+203}:\\
\;\;\;\;\frac{\frac{\ell}{\tan k}}{k} \cdot \frac{\frac{2}{\frac{\sin k}{\ell}}}{k \cdot t}\\

\mathbf{else}:\\
\;\;\;\;\frac{\ell}{k \cdot \tan k} \cdot \left(\frac{\frac{2}{\sin k}}{k} \cdot \frac{\ell}{t}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if l < 9.9999999999999999e202

    1. Initial program 32.4%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*32.4%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*32.6%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*32.4%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/33.3%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative33.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac33.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative33.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+42.7%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval42.7%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity42.7%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac48.1%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified48.1%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 81.1%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow281.1%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified81.1%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Step-by-step derivation
      1. associate-*l/81.2%

        \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\left(k \cdot k\right) \cdot t}} \]
      2. associate-*l*87.1%

        \[\leadsto \frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\color{blue}{k \cdot \left(k \cdot t\right)}} \]
    8. Applied egg-rr87.1%

      \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{k \cdot \left(k \cdot t\right)}} \]
    9. Step-by-step derivation
      1. associate-*l/87.1%

        \[\leadsto \color{blue}{\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
      2. associate-*r*81.1%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      3. unpow281.1%

        \[\leadsto \frac{2}{\color{blue}{{k}^{2}} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      4. associate-/r*81.1%

        \[\leadsto \color{blue}{\frac{\frac{2}{{k}^{2}}}{t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      5. unpow281.1%

        \[\leadsto \frac{\frac{2}{\color{blue}{k \cdot k}}}{t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      6. associate-*r*85.1%

        \[\leadsto \color{blue}{\left(\frac{\frac{2}{k \cdot k}}{t} \cdot \frac{\ell}{\sin k}\right) \cdot \frac{\ell}{\tan k}} \]
      7. *-commutative85.1%

        \[\leadsto \color{blue}{\frac{\ell}{\tan k} \cdot \left(\frac{\frac{2}{k \cdot k}}{t} \cdot \frac{\ell}{\sin k}\right)} \]
      8. unpow285.1%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{\frac{2}{\color{blue}{{k}^{2}}}}{t} \cdot \frac{\ell}{\sin k}\right) \]
      9. associate-/r*85.0%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \frac{\ell}{\sin k}\right) \]
      10. unpow285.0%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \frac{\ell}{\sin k}\right) \]
      11. associate-*r*92.2%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{2}{\color{blue}{k \cdot \left(k \cdot t\right)}} \cdot \frac{\ell}{\sin k}\right) \]
      12. associate-*l/92.2%

        \[\leadsto \frac{\ell}{\tan k} \cdot \color{blue}{\frac{2 \cdot \frac{\ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
      13. associate-*r/92.2%

        \[\leadsto \frac{\ell}{\tan k} \cdot \frac{\color{blue}{\frac{2 \cdot \ell}{\sin k}}}{k \cdot \left(k \cdot t\right)} \]
    10. Simplified92.2%

      \[\leadsto \color{blue}{\frac{\ell}{\tan k} \cdot \frac{\frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
    11. Step-by-step derivation
      1. associate-*r/87.1%

        \[\leadsto \color{blue}{\frac{\frac{\ell}{\tan k} \cdot \frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
    12. Applied egg-rr87.1%

      \[\leadsto \color{blue}{\frac{\frac{\ell}{\tan k} \cdot \frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
    13. Step-by-step derivation
      1. times-frac96.0%

        \[\leadsto \color{blue}{\frac{\frac{\ell}{\tan k}}{k} \cdot \frac{\frac{2 \cdot \ell}{\sin k}}{k \cdot t}} \]
      2. associate-/l*95.9%

        \[\leadsto \frac{\frac{\ell}{\tan k}}{k} \cdot \frac{\color{blue}{\frac{2}{\frac{\sin k}{\ell}}}}{k \cdot t} \]
    14. Applied egg-rr95.9%

      \[\leadsto \color{blue}{\frac{\frac{\ell}{\tan k}}{k} \cdot \frac{\frac{2}{\frac{\sin k}{\ell}}}{k \cdot t}} \]

    if 9.9999999999999999e202 < l

    1. Initial program 12.9%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*12.9%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*12.9%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*12.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/12.9%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative12.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac12.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative12.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+12.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval12.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity12.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac12.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified12.9%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 58.7%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow258.7%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified58.7%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Step-by-step derivation
      1. associate-*l/58.7%

        \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\left(k \cdot k\right) \cdot t}} \]
      2. associate-*l*62.1%

        \[\leadsto \frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\color{blue}{k \cdot \left(k \cdot t\right)}} \]
    8. Applied egg-rr62.1%

      \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{k \cdot \left(k \cdot t\right)}} \]
    9. Step-by-step derivation
      1. associate-*l/62.1%

        \[\leadsto \color{blue}{\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
      2. associate-*r*58.7%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      3. unpow258.7%

        \[\leadsto \frac{2}{\color{blue}{{k}^{2}} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      4. associate-/r*58.7%

        \[\leadsto \color{blue}{\frac{\frac{2}{{k}^{2}}}{t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      5. unpow258.7%

        \[\leadsto \frac{\frac{2}{\color{blue}{k \cdot k}}}{t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      6. associate-*r*68.9%

        \[\leadsto \color{blue}{\left(\frac{\frac{2}{k \cdot k}}{t} \cdot \frac{\ell}{\sin k}\right) \cdot \frac{\ell}{\tan k}} \]
      7. *-commutative68.9%

        \[\leadsto \color{blue}{\frac{\ell}{\tan k} \cdot \left(\frac{\frac{2}{k \cdot k}}{t} \cdot \frac{\ell}{\sin k}\right)} \]
      8. unpow268.9%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{\frac{2}{\color{blue}{{k}^{2}}}}{t} \cdot \frac{\ell}{\sin k}\right) \]
      9. associate-/r*68.9%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \frac{\ell}{\sin k}\right) \]
      10. unpow268.9%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \frac{\ell}{\sin k}\right) \]
      11. associate-*r*75.2%

        \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{2}{\color{blue}{k \cdot \left(k \cdot t\right)}} \cdot \frac{\ell}{\sin k}\right) \]
      12. associate-*l/75.2%

        \[\leadsto \frac{\ell}{\tan k} \cdot \color{blue}{\frac{2 \cdot \frac{\ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
      13. associate-*r/75.2%

        \[\leadsto \frac{\ell}{\tan k} \cdot \frac{\color{blue}{\frac{2 \cdot \ell}{\sin k}}}{k \cdot \left(k \cdot t\right)} \]
    10. Simplified75.2%

      \[\leadsto \color{blue}{\frac{\ell}{\tan k} \cdot \frac{\frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
    11. Step-by-step derivation
      1. associate-*r/62.1%

        \[\leadsto \color{blue}{\frac{\frac{\ell}{\tan k} \cdot \frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
    12. Applied egg-rr62.1%

      \[\leadsto \color{blue}{\frac{\frac{\ell}{\tan k} \cdot \frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
    13. Step-by-step derivation
      1. expm1-log1p-u19.7%

        \[\leadsto \color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left(\frac{\frac{\ell}{\tan k} \cdot \frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)}\right)\right)} \]
      2. expm1-udef19.7%

        \[\leadsto \color{blue}{e^{\mathsf{log1p}\left(\frac{\frac{\ell}{\tan k} \cdot \frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)}\right)} - 1} \]
      3. times-frac26.4%

        \[\leadsto e^{\mathsf{log1p}\left(\color{blue}{\frac{\frac{\ell}{\tan k}}{k} \cdot \frac{\frac{2 \cdot \ell}{\sin k}}{k \cdot t}}\right)} - 1 \]
      4. associate-/l*26.4%

        \[\leadsto e^{\mathsf{log1p}\left(\frac{\frac{\ell}{\tan k}}{k} \cdot \frac{\color{blue}{\frac{2}{\frac{\sin k}{\ell}}}}{k \cdot t}\right)} - 1 \]
    14. Applied egg-rr26.4%

      \[\leadsto \color{blue}{e^{\mathsf{log1p}\left(\frac{\frac{\ell}{\tan k}}{k} \cdot \frac{\frac{2}{\frac{\sin k}{\ell}}}{k \cdot t}\right)} - 1} \]
    15. Step-by-step derivation
      1. expm1-def26.4%

        \[\leadsto \color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left(\frac{\frac{\ell}{\tan k}}{k} \cdot \frac{\frac{2}{\frac{\sin k}{\ell}}}{k \cdot t}\right)\right)} \]
      2. expm1-log1p78.3%

        \[\leadsto \color{blue}{\frac{\frac{\ell}{\tan k}}{k} \cdot \frac{\frac{2}{\frac{\sin k}{\ell}}}{k \cdot t}} \]
      3. associate-/l/78.4%

        \[\leadsto \color{blue}{\frac{\ell}{k \cdot \tan k}} \cdot \frac{\frac{2}{\frac{\sin k}{\ell}}}{k \cdot t} \]
      4. associate-/r/78.4%

        \[\leadsto \frac{\ell}{k \cdot \tan k} \cdot \frac{\color{blue}{\frac{2}{\sin k} \cdot \ell}}{k \cdot t} \]
      5. times-frac93.7%

        \[\leadsto \frac{\ell}{k \cdot \tan k} \cdot \color{blue}{\left(\frac{\frac{2}{\sin k}}{k} \cdot \frac{\ell}{t}\right)} \]
    16. Simplified93.7%

      \[\leadsto \color{blue}{\frac{\ell}{k \cdot \tan k} \cdot \left(\frac{\frac{2}{\sin k}}{k} \cdot \frac{\ell}{t}\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification95.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\ell \leq 10^{+203}:\\ \;\;\;\;\frac{\frac{\ell}{\tan k}}{k} \cdot \frac{\frac{2}{\frac{\sin k}{\ell}}}{k \cdot t}\\ \mathbf{else}:\\ \;\;\;\;\frac{\ell}{k \cdot \tan k} \cdot \left(\frac{\frac{2}{\sin k}}{k} \cdot \frac{\ell}{t}\right)\\ \end{array} \]

Alternative 7: 89.3% accurate, 2.0× speedup?

\[\begin{array}{l} \\ \frac{\ell}{\tan k} \cdot \frac{\frac{\ell \cdot 2}{\sin k}}{k \cdot \left(k \cdot t\right)} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (* (/ l (tan k)) (/ (/ (* l 2.0) (sin k)) (* k (* k t)))))
double code(double t, double l, double k) {
	return (l / tan(k)) * (((l * 2.0) / sin(k)) / (k * (k * t)));
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    code = (l / tan(k)) * (((l * 2.0d0) / sin(k)) / (k * (k * t)))
end function
public static double code(double t, double l, double k) {
	return (l / Math.tan(k)) * (((l * 2.0) / Math.sin(k)) / (k * (k * t)));
}
def code(t, l, k):
	return (l / math.tan(k)) * (((l * 2.0) / math.sin(k)) / (k * (k * t)))
function code(t, l, k)
	return Float64(Float64(l / tan(k)) * Float64(Float64(Float64(l * 2.0) / sin(k)) / Float64(k * Float64(k * t))))
end
function tmp = code(t, l, k)
	tmp = (l / tan(k)) * (((l * 2.0) / sin(k)) / (k * (k * t)));
end
code[t_, l_, k_] := N[(N[(l / N[Tan[k], $MachinePrecision]), $MachinePrecision] * N[(N[(N[(l * 2.0), $MachinePrecision] / N[Sin[k], $MachinePrecision]), $MachinePrecision] / N[(k * N[(k * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{\ell}{\tan k} \cdot \frac{\frac{\ell \cdot 2}{\sin k}}{k \cdot \left(k \cdot t\right)}
\end{array}
Derivation
  1. Initial program 30.1%

    \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
  2. Step-by-step derivation
    1. associate-*l*30.1%

      \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. associate-*l*30.2%

      \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
    3. associate-/r*30.1%

      \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
    4. associate-/r/30.8%

      \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    5. *-commutative30.8%

      \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
    6. times-frac31.3%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
    7. +-commutative31.3%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
    8. associate--l+39.1%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
    9. metadata-eval39.1%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
    10. +-rgt-identity39.1%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
    11. times-frac43.9%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
  3. Simplified43.9%

    \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
  4. Taylor expanded in t around 0 78.4%

    \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
  5. Step-by-step derivation
    1. unpow278.4%

      \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
  6. Simplified78.4%

    \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
  7. Step-by-step derivation
    1. associate-*l/78.4%

      \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\left(k \cdot k\right) \cdot t}} \]
    2. associate-*l*84.1%

      \[\leadsto \frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\color{blue}{k \cdot \left(k \cdot t\right)}} \]
  8. Applied egg-rr84.1%

    \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{k \cdot \left(k \cdot t\right)}} \]
  9. Step-by-step derivation
    1. associate-*l/84.1%

      \[\leadsto \color{blue}{\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    2. associate-*r*78.4%

      \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    3. unpow278.4%

      \[\leadsto \frac{2}{\color{blue}{{k}^{2}} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    4. associate-/r*78.4%

      \[\leadsto \color{blue}{\frac{\frac{2}{{k}^{2}}}{t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. unpow278.4%

      \[\leadsto \frac{\frac{2}{\color{blue}{k \cdot k}}}{t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. associate-*r*83.1%

      \[\leadsto \color{blue}{\left(\frac{\frac{2}{k \cdot k}}{t} \cdot \frac{\ell}{\sin k}\right) \cdot \frac{\ell}{\tan k}} \]
    7. *-commutative83.1%

      \[\leadsto \color{blue}{\frac{\ell}{\tan k} \cdot \left(\frac{\frac{2}{k \cdot k}}{t} \cdot \frac{\ell}{\sin k}\right)} \]
    8. unpow283.1%

      \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{\frac{2}{\color{blue}{{k}^{2}}}}{t} \cdot \frac{\ell}{\sin k}\right) \]
    9. associate-/r*83.1%

      \[\leadsto \frac{\ell}{\tan k} \cdot \left(\color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \frac{\ell}{\sin k}\right) \]
    10. unpow283.1%

      \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \frac{\ell}{\sin k}\right) \]
    11. associate-*r*90.2%

      \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{2}{\color{blue}{k \cdot \left(k \cdot t\right)}} \cdot \frac{\ell}{\sin k}\right) \]
    12. associate-*l/90.2%

      \[\leadsto \frac{\ell}{\tan k} \cdot \color{blue}{\frac{2 \cdot \frac{\ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
    13. associate-*r/90.2%

      \[\leadsto \frac{\ell}{\tan k} \cdot \frac{\color{blue}{\frac{2 \cdot \ell}{\sin k}}}{k \cdot \left(k \cdot t\right)} \]
  10. Simplified90.2%

    \[\leadsto \color{blue}{\frac{\ell}{\tan k} \cdot \frac{\frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
  11. Final simplification90.2%

    \[\leadsto \frac{\ell}{\tan k} \cdot \frac{\frac{\ell \cdot 2}{\sin k}}{k \cdot \left(k \cdot t\right)} \]

Alternative 8: 68.6% accurate, 3.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\ell \leq 2.75 \cdot 10^{-210}:\\ \;\;\;\;2 \cdot \frac{\ell}{\frac{t \cdot {k}^{4}}{\ell}}\\ \mathbf{else}:\\ \;\;\;\;\frac{2}{k} \cdot \frac{\frac{\ell \cdot \frac{\ell}{k}}{\sin k}}{k \cdot t}\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (if (<= l 2.75e-210)
   (* 2.0 (/ l (/ (* t (pow k 4.0)) l)))
   (* (/ 2.0 k) (/ (/ (* l (/ l k)) (sin k)) (* k t)))))
double code(double t, double l, double k) {
	double tmp;
	if (l <= 2.75e-210) {
		tmp = 2.0 * (l / ((t * pow(k, 4.0)) / l));
	} else {
		tmp = (2.0 / k) * (((l * (l / k)) / sin(k)) / (k * t));
	}
	return tmp;
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    real(8) :: tmp
    if (l <= 2.75d-210) then
        tmp = 2.0d0 * (l / ((t * (k ** 4.0d0)) / l))
    else
        tmp = (2.0d0 / k) * (((l * (l / k)) / sin(k)) / (k * t))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double tmp;
	if (l <= 2.75e-210) {
		tmp = 2.0 * (l / ((t * Math.pow(k, 4.0)) / l));
	} else {
		tmp = (2.0 / k) * (((l * (l / k)) / Math.sin(k)) / (k * t));
	}
	return tmp;
}
def code(t, l, k):
	tmp = 0
	if l <= 2.75e-210:
		tmp = 2.0 * (l / ((t * math.pow(k, 4.0)) / l))
	else:
		tmp = (2.0 / k) * (((l * (l / k)) / math.sin(k)) / (k * t))
	return tmp
function code(t, l, k)
	tmp = 0.0
	if (l <= 2.75e-210)
		tmp = Float64(2.0 * Float64(l / Float64(Float64(t * (k ^ 4.0)) / l)));
	else
		tmp = Float64(Float64(2.0 / k) * Float64(Float64(Float64(l * Float64(l / k)) / sin(k)) / Float64(k * t)));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	tmp = 0.0;
	if (l <= 2.75e-210)
		tmp = 2.0 * (l / ((t * (k ^ 4.0)) / l));
	else
		tmp = (2.0 / k) * (((l * (l / k)) / sin(k)) / (k * t));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := If[LessEqual[l, 2.75e-210], N[(2.0 * N[(l / N[(N[(t * N[Power[k, 4.0], $MachinePrecision]), $MachinePrecision] / l), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(2.0 / k), $MachinePrecision] * N[(N[(N[(l * N[(l / k), $MachinePrecision]), $MachinePrecision] / N[Sin[k], $MachinePrecision]), $MachinePrecision] / N[(k * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;\ell \leq 2.75 \cdot 10^{-210}:\\
\;\;\;\;2 \cdot \frac{\ell}{\frac{t \cdot {k}^{4}}{\ell}}\\

\mathbf{else}:\\
\;\;\;\;\frac{2}{k} \cdot \frac{\frac{\ell \cdot \frac{\ell}{k}}{\sin k}}{k \cdot t}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if l < 2.75000000000000012e-210

    1. Initial program 31.7%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*31.7%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*32.0%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*31.7%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/32.4%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative32.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac33.2%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative33.2%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+42.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval42.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity42.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac48.8%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified48.8%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in k around 0 61.0%

      \[\leadsto \color{blue}{2 \cdot \frac{{\ell}^{2}}{{k}^{4} \cdot t}} \]
    5. Step-by-step derivation
      1. unpow261.0%

        \[\leadsto 2 \cdot \frac{\color{blue}{\ell \cdot \ell}}{{k}^{4} \cdot t} \]
      2. *-commutative61.0%

        \[\leadsto 2 \cdot \frac{\ell \cdot \ell}{\color{blue}{t \cdot {k}^{4}}} \]
    6. Simplified61.0%

      \[\leadsto \color{blue}{2 \cdot \frac{\ell \cdot \ell}{t \cdot {k}^{4}}} \]
    7. Taylor expanded in l around 0 61.0%

      \[\leadsto 2 \cdot \color{blue}{\frac{{\ell}^{2}}{{k}^{4} \cdot t}} \]
    8. Step-by-step derivation
      1. unpow261.0%

        \[\leadsto 2 \cdot \frac{\color{blue}{\ell \cdot \ell}}{{k}^{4} \cdot t} \]
      2. *-commutative61.0%

        \[\leadsto 2 \cdot \frac{\ell \cdot \ell}{\color{blue}{t \cdot {k}^{4}}} \]
      3. associate-/l*71.1%

        \[\leadsto 2 \cdot \color{blue}{\frac{\ell}{\frac{t \cdot {k}^{4}}{\ell}}} \]
    9. Simplified71.1%

      \[\leadsto 2 \cdot \color{blue}{\frac{\ell}{\frac{t \cdot {k}^{4}}{\ell}}} \]

    if 2.75000000000000012e-210 < l

    1. Initial program 28.0%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*28.0%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*28.0%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*28.0%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/28.8%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative28.8%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac28.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative28.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+35.0%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval35.0%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity35.0%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac37.6%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified37.6%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 76.0%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow276.0%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified76.0%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Step-by-step derivation
      1. associate-*l/76.0%

        \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\left(k \cdot k\right) \cdot t}} \]
      2. associate-*l*82.1%

        \[\leadsto \frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\color{blue}{k \cdot \left(k \cdot t\right)}} \]
    8. Applied egg-rr82.1%

      \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{k \cdot \left(k \cdot t\right)}} \]
    9. Step-by-step derivation
      1. times-frac81.9%

        \[\leadsto \color{blue}{\frac{2}{k} \cdot \frac{\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}}{k \cdot t}} \]
      2. associate-*l/81.9%

        \[\leadsto \frac{2}{k} \cdot \frac{\color{blue}{\frac{\ell \cdot \frac{\ell}{\tan k}}{\sin k}}}{k \cdot t} \]
    10. Simplified81.9%

      \[\leadsto \color{blue}{\frac{2}{k} \cdot \frac{\frac{\ell \cdot \frac{\ell}{\tan k}}{\sin k}}{k \cdot t}} \]
    11. Taylor expanded in k around 0 71.7%

      \[\leadsto \frac{2}{k} \cdot \frac{\frac{\ell \cdot \color{blue}{\frac{\ell}{k}}}{\sin k}}{k \cdot t} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification71.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\ell \leq 2.75 \cdot 10^{-210}:\\ \;\;\;\;2 \cdot \frac{\ell}{\frac{t \cdot {k}^{4}}{\ell}}\\ \mathbf{else}:\\ \;\;\;\;\frac{2}{k} \cdot \frac{\frac{\ell \cdot \frac{\ell}{k}}{\sin k}}{k \cdot t}\\ \end{array} \]

Alternative 9: 72.7% accurate, 3.7× speedup?

\[\begin{array}{l} \\ \frac{\ell}{k} \cdot \frac{\frac{\ell \cdot 2}{\sin k}}{k \cdot \left(k \cdot t\right)} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (* (/ l k) (/ (/ (* l 2.0) (sin k)) (* k (* k t)))))
double code(double t, double l, double k) {
	return (l / k) * (((l * 2.0) / sin(k)) / (k * (k * t)));
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    code = (l / k) * (((l * 2.0d0) / sin(k)) / (k * (k * t)))
end function
public static double code(double t, double l, double k) {
	return (l / k) * (((l * 2.0) / Math.sin(k)) / (k * (k * t)));
}
def code(t, l, k):
	return (l / k) * (((l * 2.0) / math.sin(k)) / (k * (k * t)))
function code(t, l, k)
	return Float64(Float64(l / k) * Float64(Float64(Float64(l * 2.0) / sin(k)) / Float64(k * Float64(k * t))))
end
function tmp = code(t, l, k)
	tmp = (l / k) * (((l * 2.0) / sin(k)) / (k * (k * t)));
end
code[t_, l_, k_] := N[(N[(l / k), $MachinePrecision] * N[(N[(N[(l * 2.0), $MachinePrecision] / N[Sin[k], $MachinePrecision]), $MachinePrecision] / N[(k * N[(k * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{\ell}{k} \cdot \frac{\frac{\ell \cdot 2}{\sin k}}{k \cdot \left(k \cdot t\right)}
\end{array}
Derivation
  1. Initial program 30.1%

    \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
  2. Step-by-step derivation
    1. associate-*l*30.1%

      \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. associate-*l*30.2%

      \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
    3. associate-/r*30.1%

      \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
    4. associate-/r/30.8%

      \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    5. *-commutative30.8%

      \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
    6. times-frac31.3%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
    7. +-commutative31.3%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
    8. associate--l+39.1%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
    9. metadata-eval39.1%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
    10. +-rgt-identity39.1%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
    11. times-frac43.9%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
  3. Simplified43.9%

    \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
  4. Taylor expanded in t around 0 78.4%

    \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
  5. Step-by-step derivation
    1. unpow278.4%

      \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
  6. Simplified78.4%

    \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
  7. Step-by-step derivation
    1. associate-*l/78.4%

      \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\left(k \cdot k\right) \cdot t}} \]
    2. associate-*l*84.1%

      \[\leadsto \frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\color{blue}{k \cdot \left(k \cdot t\right)}} \]
  8. Applied egg-rr84.1%

    \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{k \cdot \left(k \cdot t\right)}} \]
  9. Step-by-step derivation
    1. associate-*l/84.1%

      \[\leadsto \color{blue}{\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    2. associate-*r*78.4%

      \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    3. unpow278.4%

      \[\leadsto \frac{2}{\color{blue}{{k}^{2}} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    4. associate-/r*78.4%

      \[\leadsto \color{blue}{\frac{\frac{2}{{k}^{2}}}{t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. unpow278.4%

      \[\leadsto \frac{\frac{2}{\color{blue}{k \cdot k}}}{t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. associate-*r*83.1%

      \[\leadsto \color{blue}{\left(\frac{\frac{2}{k \cdot k}}{t} \cdot \frac{\ell}{\sin k}\right) \cdot \frac{\ell}{\tan k}} \]
    7. *-commutative83.1%

      \[\leadsto \color{blue}{\frac{\ell}{\tan k} \cdot \left(\frac{\frac{2}{k \cdot k}}{t} \cdot \frac{\ell}{\sin k}\right)} \]
    8. unpow283.1%

      \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{\frac{2}{\color{blue}{{k}^{2}}}}{t} \cdot \frac{\ell}{\sin k}\right) \]
    9. associate-/r*83.1%

      \[\leadsto \frac{\ell}{\tan k} \cdot \left(\color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \frac{\ell}{\sin k}\right) \]
    10. unpow283.1%

      \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \frac{\ell}{\sin k}\right) \]
    11. associate-*r*90.2%

      \[\leadsto \frac{\ell}{\tan k} \cdot \left(\frac{2}{\color{blue}{k \cdot \left(k \cdot t\right)}} \cdot \frac{\ell}{\sin k}\right) \]
    12. associate-*l/90.2%

      \[\leadsto \frac{\ell}{\tan k} \cdot \color{blue}{\frac{2 \cdot \frac{\ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
    13. associate-*r/90.2%

      \[\leadsto \frac{\ell}{\tan k} \cdot \frac{\color{blue}{\frac{2 \cdot \ell}{\sin k}}}{k \cdot \left(k \cdot t\right)} \]
  10. Simplified90.2%

    \[\leadsto \color{blue}{\frac{\ell}{\tan k} \cdot \frac{\frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)}} \]
  11. Taylor expanded in k around 0 75.9%

    \[\leadsto \color{blue}{\frac{\ell}{k}} \cdot \frac{\frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)} \]
  12. Final simplification75.9%

    \[\leadsto \frac{\ell}{k} \cdot \frac{\frac{\ell \cdot 2}{\sin k}}{k \cdot \left(k \cdot t\right)} \]

Alternative 10: 69.9% accurate, 28.1× speedup?

\[\begin{array}{l} \\ \frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\ell \cdot \frac{\ell}{k \cdot k}\right) \end{array} \]
(FPCore (t l k)
 :precision binary64
 (* (/ 2.0 (* k (* k t))) (* l (/ l (* k k)))))
double code(double t, double l, double k) {
	return (2.0 / (k * (k * t))) * (l * (l / (k * k)));
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    code = (2.0d0 / (k * (k * t))) * (l * (l / (k * k)))
end function
public static double code(double t, double l, double k) {
	return (2.0 / (k * (k * t))) * (l * (l / (k * k)));
}
def code(t, l, k):
	return (2.0 / (k * (k * t))) * (l * (l / (k * k)))
function code(t, l, k)
	return Float64(Float64(2.0 / Float64(k * Float64(k * t))) * Float64(l * Float64(l / Float64(k * k))))
end
function tmp = code(t, l, k)
	tmp = (2.0 / (k * (k * t))) * (l * (l / (k * k)));
end
code[t_, l_, k_] := N[(N[(2.0 / N[(k * N[(k * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(l * N[(l / N[(k * k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\ell \cdot \frac{\ell}{k \cdot k}\right)
\end{array}
Derivation
  1. Initial program 30.1%

    \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
  2. Step-by-step derivation
    1. associate-*l*30.1%

      \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. associate-*l*30.2%

      \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
    3. associate-/r*30.1%

      \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
    4. associate-/r/30.8%

      \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    5. *-commutative30.8%

      \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
    6. times-frac31.3%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
    7. +-commutative31.3%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
    8. associate--l+39.1%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
    9. metadata-eval39.1%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
    10. +-rgt-identity39.1%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
    11. times-frac43.9%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
  3. Simplified43.9%

    \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
  4. Taylor expanded in t around 0 78.4%

    \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
  5. Step-by-step derivation
    1. unpow278.4%

      \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
  6. Simplified78.4%

    \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
  7. Taylor expanded in k around 0 66.3%

    \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \color{blue}{\frac{{\ell}^{2}}{{k}^{2}}} \]
  8. Step-by-step derivation
    1. unpow266.3%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \frac{\color{blue}{\ell \cdot \ell}}{{k}^{2}} \]
    2. unpow266.3%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \frac{\ell \cdot \ell}{\color{blue}{k \cdot k}} \]
  9. Simplified66.3%

    \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \color{blue}{\frac{\ell \cdot \ell}{k \cdot k}} \]
  10. Taylor expanded in l around 0 66.3%

    \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \color{blue}{\frac{{\ell}^{2}}{{k}^{2}}} \]
  11. Step-by-step derivation
    1. *-rgt-identity66.3%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \frac{\color{blue}{{\ell}^{2} \cdot 1}}{{k}^{2}} \]
    2. associate-*r/66.3%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \color{blue}{\left({\ell}^{2} \cdot \frac{1}{{k}^{2}}\right)} \]
    3. unpow266.3%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \left(\color{blue}{\left(\ell \cdot \ell\right)} \cdot \frac{1}{{k}^{2}}\right) \]
    4. unpow266.3%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \left(\left(\ell \cdot \ell\right) \cdot \frac{1}{\color{blue}{k \cdot k}}\right) \]
    5. associate-*l*71.5%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \color{blue}{\left(\ell \cdot \left(\ell \cdot \frac{1}{k \cdot k}\right)\right)} \]
    6. unpow271.5%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \left(\ell \cdot \left(\ell \cdot \frac{1}{\color{blue}{{k}^{2}}}\right)\right) \]
    7. associate-*r/71.5%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \left(\ell \cdot \color{blue}{\frac{\ell \cdot 1}{{k}^{2}}}\right) \]
    8. *-rgt-identity71.5%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \left(\ell \cdot \frac{\color{blue}{\ell}}{{k}^{2}}\right) \]
    9. unpow271.5%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \left(\ell \cdot \frac{\ell}{\color{blue}{k \cdot k}}\right) \]
  12. Simplified71.5%

    \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \color{blue}{\left(\ell \cdot \frac{\ell}{k \cdot k}\right)} \]
  13. Taylor expanded in k around 0 71.5%

    \[\leadsto \frac{2}{\color{blue}{{k}^{2} \cdot t}} \cdot \left(\ell \cdot \frac{\ell}{k \cdot k}\right) \]
  14. Step-by-step derivation
    1. unpow271.5%

      \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\ell \cdot \frac{\ell}{k \cdot k}\right) \]
    2. associate-*r*71.6%

      \[\leadsto \frac{2}{\color{blue}{k \cdot \left(k \cdot t\right)}} \cdot \left(\ell \cdot \frac{\ell}{k \cdot k}\right) \]
  15. Simplified71.6%

    \[\leadsto \frac{2}{\color{blue}{k \cdot \left(k \cdot t\right)}} \cdot \left(\ell \cdot \frac{\ell}{k \cdot k}\right) \]
  16. Final simplification71.6%

    \[\leadsto \frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\ell \cdot \frac{\ell}{k \cdot k}\right) \]

Alternative 11: 71.3% accurate, 28.1× speedup?

\[\begin{array}{l} \\ \frac{2 \cdot \left(\ell \cdot \frac{\frac{\ell}{k}}{k}\right)}{k \cdot \left(k \cdot t\right)} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (/ (* 2.0 (* l (/ (/ l k) k))) (* k (* k t))))
double code(double t, double l, double k) {
	return (2.0 * (l * ((l / k) / k))) / (k * (k * t));
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    code = (2.0d0 * (l * ((l / k) / k))) / (k * (k * t))
end function
public static double code(double t, double l, double k) {
	return (2.0 * (l * ((l / k) / k))) / (k * (k * t));
}
def code(t, l, k):
	return (2.0 * (l * ((l / k) / k))) / (k * (k * t))
function code(t, l, k)
	return Float64(Float64(2.0 * Float64(l * Float64(Float64(l / k) / k))) / Float64(k * Float64(k * t)))
end
function tmp = code(t, l, k)
	tmp = (2.0 * (l * ((l / k) / k))) / (k * (k * t));
end
code[t_, l_, k_] := N[(N[(2.0 * N[(l * N[(N[(l / k), $MachinePrecision] / k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(k * N[(k * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{2 \cdot \left(\ell \cdot \frac{\frac{\ell}{k}}{k}\right)}{k \cdot \left(k \cdot t\right)}
\end{array}
Derivation
  1. Initial program 30.1%

    \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
  2. Step-by-step derivation
    1. associate-*l*30.1%

      \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. associate-*l*30.2%

      \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
    3. associate-/r*30.1%

      \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
    4. associate-/r/30.8%

      \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    5. *-commutative30.8%

      \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
    6. times-frac31.3%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
    7. +-commutative31.3%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
    8. associate--l+39.1%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
    9. metadata-eval39.1%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
    10. +-rgt-identity39.1%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
    11. times-frac43.9%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
  3. Simplified43.9%

    \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
  4. Taylor expanded in t around 0 78.4%

    \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
  5. Step-by-step derivation
    1. unpow278.4%

      \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
  6. Simplified78.4%

    \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
  7. Taylor expanded in k around 0 66.3%

    \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \color{blue}{\frac{{\ell}^{2}}{{k}^{2}}} \]
  8. Step-by-step derivation
    1. unpow266.3%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \frac{\color{blue}{\ell \cdot \ell}}{{k}^{2}} \]
    2. unpow266.3%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \frac{\ell \cdot \ell}{\color{blue}{k \cdot k}} \]
  9. Simplified66.3%

    \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \color{blue}{\frac{\ell \cdot \ell}{k \cdot k}} \]
  10. Taylor expanded in l around 0 66.3%

    \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \color{blue}{\frac{{\ell}^{2}}{{k}^{2}}} \]
  11. Step-by-step derivation
    1. *-rgt-identity66.3%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \frac{\color{blue}{{\ell}^{2} \cdot 1}}{{k}^{2}} \]
    2. associate-*r/66.3%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \color{blue}{\left({\ell}^{2} \cdot \frac{1}{{k}^{2}}\right)} \]
    3. unpow266.3%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \left(\color{blue}{\left(\ell \cdot \ell\right)} \cdot \frac{1}{{k}^{2}}\right) \]
    4. unpow266.3%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \left(\left(\ell \cdot \ell\right) \cdot \frac{1}{\color{blue}{k \cdot k}}\right) \]
    5. associate-*l*71.5%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \color{blue}{\left(\ell \cdot \left(\ell \cdot \frac{1}{k \cdot k}\right)\right)} \]
    6. unpow271.5%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \left(\ell \cdot \left(\ell \cdot \frac{1}{\color{blue}{{k}^{2}}}\right)\right) \]
    7. associate-*r/71.5%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \left(\ell \cdot \color{blue}{\frac{\ell \cdot 1}{{k}^{2}}}\right) \]
    8. *-rgt-identity71.5%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \left(\ell \cdot \frac{\color{blue}{\ell}}{{k}^{2}}\right) \]
    9. unpow271.5%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \left(\ell \cdot \frac{\ell}{\color{blue}{k \cdot k}}\right) \]
  12. Simplified71.5%

    \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \color{blue}{\left(\ell \cdot \frac{\ell}{k \cdot k}\right)} \]
  13. Step-by-step derivation
    1. associate-*r*71.6%

      \[\leadsto \frac{2}{\color{blue}{k \cdot \left(k \cdot t\right)}} \cdot \left(\ell \cdot \frac{\ell}{k \cdot k}\right) \]
    2. associate-*l/71.5%

      \[\leadsto \color{blue}{\frac{2 \cdot \left(\ell \cdot \frac{\ell}{k \cdot k}\right)}{k \cdot \left(k \cdot t\right)}} \]
    3. associate-/r*73.4%

      \[\leadsto \frac{2 \cdot \left(\ell \cdot \color{blue}{\frac{\frac{\ell}{k}}{k}}\right)}{k \cdot \left(k \cdot t\right)} \]
  14. Applied egg-rr73.4%

    \[\leadsto \color{blue}{\frac{2 \cdot \left(\ell \cdot \frac{\frac{\ell}{k}}{k}\right)}{k \cdot \left(k \cdot t\right)}} \]
  15. Final simplification73.4%

    \[\leadsto \frac{2 \cdot \left(\ell \cdot \frac{\frac{\ell}{k}}{k}\right)}{k \cdot \left(k \cdot t\right)} \]

Reproduce

?
herbie shell --seed 2023240 
(FPCore (t l k)
  :name "Toniolo and Linder, Equation (10-)"
  :precision binary64
  (/ 2.0 (* (* (* (/ (pow t 3.0) (* l l)) (sin k)) (tan k)) (- (+ 1.0 (pow (/ k t) 2.0)) 1.0))))